CBSE Board 10th Science PYQ Chapterwise
- Acids Bases And Salts Question 1
- Carbon Compounds Question 1
- Chemical Reactions Question 1
- Control And Coordination Question 1
- Electricity Question 1
- Heredity And Evolution Question 1
- Human Eye And The Colourful World Question 1
- Life Processes Question 1
- Light Reflection And Refraction Question 1
- Magnetic Effects Of Electric Current Question 1
- Management Of Natural Resources Question 1
- Metals And Nonmetals Question 1
- Our Environment Question 1
- Periodic Classification Of Elements Question 1
- Reproduction Question 1
- Sources Of Energy Question 1
- Acids Bases And Salts Question 2
- Carbon Compounds Question 2
- Chemical Reactions Question 2
- Control And Coordination Question 2
- Electricity Question 2
- Heredity And Evolution Question 2
- Human Eye And The Colourful World Question 2
- Life Processes Question 2
- Light Reflection And Refraction Question 2
- Magnetic Effects Of Electric Current Question 2
- Management Of Natural Resources Question 2
- Metals And Nonmetals Question 2
- Our Environment Question 2
- Periodic Classification Of Elements Question 2
- Reproduction Question 2
- Sources Of Energy Question 2
- Acids Bases And Salts Question 3
- Carbon Compounds Question 3
- Chemical Reactions Question 3
- Control And Coordination Question 3
- Electricity Question 3
- Heredity And Evolution Question 3
- Human Eye And The Colourful World Question 3
- Life Processes Question 3
- Light Reflection And Refraction Question 3
- Magnetic Effects Of Electric Current Question 3
- Management Of Natural Resources Question 3
- Metals And Nonmetals Question 3
- Our Environment Question 3
- Periodic Classification Of Elements Question 3
- Reproduction Question 3
- Sources Of Energy Question 3
- Acids Bases And Salts Question 4
- Carbon Compounds Question 4
- Chemical Reactions Question 4
- Control And Coordination Question 4
- Electricity Question 4
- Heredity And Evolution Question 4
- Human Eye And The Colourful World Question 4
- Life Processes Question 4
- Light Reflection And Refraction Question 4
- Magnetic Effects Of Electric Current Question 4
- Management Of Natural Resources Question 4
- Metals And Nonmetals Question 4
- Our Environment Question 4
- Periodic Classification Of Elements Question 4
- Reproduction Question 4
- Sources Of Energy Question 4
- Acids Bases And Salts Question 5
- Carbon Compounds Question 5
- Chemical Reactions Question 5
- Control And Coordination Question 5
- Electricity Question 5
- Heredity And Evolution Question 5
- Human Eye And The Colourful World Question 5
- Life Processes Question 5
- Light Reflection And Refraction Question 5
- Magnetic Effects Of Electric Current Question 5
- Management Of Natural Resources Question 5
- Metals And Nonmetals Question 5
- Our Environment Question 5
- Periodic Classification Of Elements Question 5
- Reproduction Question 5
- Sources Of Energy Question 5
- Acids Bases And Salts Question 6
- Carbon Compounds Question 6
- Chemical Reactions Question 6
- Control And Coordination Question 6
- Electricity Question 6
- Heredity And Evolution Question 6
- Human Eye And The Colourful World Question 6
- Life Processes Question 6
- Light Reflection And Refraction Question 6
- Magnetic Effects Of Electric Current Question 6
- Management Of Natural Resources Question 6
- Metals And Nonmetals Question 6
- Our Environment Question 6
- Periodic Classification Of Elements Question 6
- Reproduction Question 6
- Sources Of Energy Question 6
- Acids Bases And Salts Question 7
- Carbon Compounds Question 7
- Chemical Reactions Question 7
- Control And Coordination Question 7
- Electricity Question 7
- Heredity And Evolution Question 7
- Human Eye And The Colourful World Question 7
- Life Processes Question 7
- Light Reflection And Refraction Question 7
- Magnetic Effects Of Electric Current Question 7
- Management Of Natural Resources Question 7
- Metals And Nonmetals Question 7
- Our Environment Question 7
- Periodic Classification Of Elements Question 7
- Reproduction Question 7
- Sources Of Energy Question 7
- Acids Bases And Salts Question 8
- Carbon Compounds Question 8
- Chemical Reactions Question 8
- Control And Coordination Question 8
- Electricity Question 8
- Heredity And Evolution Question 8
- Human Eye And The Colourful World Question 8
- Life Processes Question 8
- Light Reflection And Refraction Question 8
- Magnetic Effects Of Electric Current Question 8
- Management Of Natural Resources Question 8
- Metals And Nonmetals Question 8
- Our Environment Question 8
- Periodic Classification Of Elements Question 8
- Reproduction Question 8
- Sources Of Energy Question 8
- Acids Bases And Salts Question 9
- Carbon Compounds Question 9
- Chemical Reactions Question 9
- Control And Coordination Question 9
- Electricity Question 9
- Heredity And Evolution Question 9
- Human Eye And The Colourful World Question 9
- Life Processes Question 9
- Light Reflection And Refraction Question 9
- Magnetic Effects Of Electric Current Question 9
- Management Of Natural Resources Question 9
- Metals And Nonmetals Question 9
- Our Environment Question 9
- Periodic Classification Of Elements Question 9
- Reproduction Question 9
- Sources Of Energy Question 9
- Acids Bases And Salts Question 10
- Carbon Compounds Question 10
- Chemical Reactions Question 10
- Control And Coordination Question 10
- Electricity Question 10
- Heredity And Evolution Question 10
- Human Eye And The Colourful World Question 10
- Life Processes Question 10
- Light Reflection And Refraction Question 10
- Magnetic Effects Of Electric Current Question 10
- Management Of Natural Resources Question 10
- Metals And Nonmetals Question 10
- Our Environment Question 10
- Periodic Classification Of Elements Question 10
- Reproduction Question 10
- Sources Of Energy Question 10
- Acids Bases And Salts Question 11
- Carbon Compounds Question 11
- Chemical Reactions Question 11
- Control And Coordination Question 11
- Electricity Question 11
- Heredity And Evolution Question 11
- Human Eye And The Colourful World Question 11
- Life Processes Question 11
- Light Reflection And Refraction Question 11
- Magnetic Effects Of Electric Current Question 11
- Management Of Natural Resources Question 11
- Metals And Nonmetals Question 11
- Our Environment Question 11
- Periodic Classification Of Elements Question 11
- Reproduction Question 11
- Sources Of Energy Question 11
- Acids Bases And Salts Question 12
- Carbon Compounds Question 12
- Chemical Reactions Question 12
- Control And Coordination Question 12
- Electricity Question 12
- Heredity And Evolution Question 12
- Human Eye And The Colourful World Question 12
- Life Processes Question 12
- Light Reflection And Refraction Question 12
- Magnetic Effects Of Electric Current Question 12
- Management Of Natural Resources Question 12
- Metals And Nonmetals Question 12
- Our Environment Question 12
- Periodic Classification Of Elements Question 12
- Reproduction Question 12
- Sources Of Energy Question 12
- Acids Bases And Salts Question 13
- Carbon Compounds Question 13
- Chemical Reactions Question 13
- Control And Coordination Question 13
- Electricity Question 13
- Heredity And Evolution Question 13
- Human Eye And The Colourful World Question 13
- Life Processes Question 13
- Light Reflection And Refraction Question 13
- Magnetic Effects Of Electric Current Question 13
- Management Of Natural Resources Question 13
- Metals And Nonmetals Question 13
- Our Environment Question 13
- Periodic Classification Of Elements Question 13
- Reproduction Question 13
- Sources Of Energy Question 13
- Acids Bases And Salts Question 14
- Carbon Compounds Question 14
- Chemical Reactions Question 14
- Control And Coordination Question 14
- Electricity Question 14
- Heredity And Evolution Question 14
- Human Eye And The Colourful World Question 14
- Life Processes Question 14
- Light Reflection And Refraction Question 14
- Magnetic Effects Of Electric Current Question 14
- Management Of Natural Resources Question 14
- Metals And Nonmetals Question 14
- Our Environment Question 14
- Periodic Classification Of Elements Question 14
- Reproduction Question 14
- Sources Of Energy Question 14
- Acids Bases And Salts Question 15
- Carbon Compounds Question 15
- Chemical Reactions Question 15
- Control And Coordination Question 15
- Electricity Question 15
- Heredity And Evolution Question 15
- Human Eye And The Colourful World Question 15
- Life Processes Question 15
- Light Reflection And Refraction Question 15
- Magnetic Effects Of Electric Current Question 15
- Management Of Natural Resources Question 15
- Metals And Nonmetals Question 15
- Our Environment Question 15
- Periodic Classification Of Elements Question 15
- Reproduction Question 15
- Sources Of Energy Question 15
- Acids Bases And Salts Question 16
- Carbon Compounds Question 16
- Chemical Reactions Question 16
- Control And Coordination Question 16
- Electricity Question 16
- Heredity And Evolution Question 16
- Human Eye And The Colourful World Question 16
- Life Processes Question 16
- Light Reflection And Refraction Question 16
- Magnetic Effects Of Electric Current Question 16
- Management Of Natural Resources Question 16
- Metals And Nonmetals Question 16
- Our Environment Question 16
- Periodic Classification Of Elements Question 16
- Reproduction Question 16
- Sources Of Energy Question 16
- Acids Bases And Salts Question 17
- Carbon Compounds Question 17
- Chemical Reactions Question 17
- Control And Coordination Question 17
- Electricity Question 17
- Heredity And Evolution Question 17
- Human Eye And The Colourful World Question 17
- Life Processes Question 17
- Light Reflection And Refraction Question 17
- Magnetic Effects Of Electric Current Question 17
- Management Of Natural Resources Question 17
- Metals And Nonmetals Question 17
- Our Environment Question 17
- Periodic Classification Of Elements Question 17
- Reproduction Question 17
- Sources Of Energy Question 17
- Acids Bases And Salts Question 18
- Carbon Compounds Question 18
- Chemical Reactions Question 18
- Control And Coordination Question 18
- Electricity Question 18
- Heredity And Evolution Question 18
- Human Eye And The Colourful World Question 18
- Life Processes Question 18
- Light Reflection And Refraction Question 18
- Magnetic Effects Of Electric Current Question 18
- Management Of Natural Resources Question 18
- Metals And Nonmetals Question 18
- Our Environment Question 18
- Periodic Classification Of Elements Question 18
- Reproduction Question 18
- Sources Of Energy Question 18
- Acids Bases And Salts Question 19
- Carbon Compounds Question 19
- Chemical Reactions Question 19
- Control And Coordination Question 19
- Electricity Question 19
- Heredity And Evolution Question 19
- Human Eye And The Colourful World Question 19
- Life Processes Question 19
- Light Reflection And Refraction Question 19
- Magnetic Effects Of Electric Current Question 19
- Management Of Natural Resources Question 19
- Metals And Nonmetals Question 19
- Our Environment Question 19
- Periodic Classification Of Elements Question 19
- Reproduction Question 19
- Sources Of Energy Question 19
- Acids Bases And Salts Question 20
- Carbon Compounds Question 20
- Chemical Reactions Question 20
- Control And Coordination Question 20
- Electricity Question 20
- Heredity And Evolution Question 20
- Human Eye And The Colourful World Question 20
- Life Processes Question 20
- Light Reflection And Refraction Question 20
- Magnetic Effects Of Electric Current Question 20
- Management Of Natural Resources Question 20
- Metals And Nonmetals Question 20
- Our Environment Question 20
- Periodic Classification Of Elements Question 20
- Reproduction Question 20
- Sources Of Energy Question 20
- Acids Bases And Salts Question 21
- Carbon Compounds Question 21
- Chemical Reactions Question 21
- Control And Coordination Question 21
- Electricity Question 21
- Heredity And Evolution Question 21
- Human Eye And The Colourful World Question 21
- Life Processes Question 21
- Light Reflection And Refraction Question 21
- Magnetic Effects Of Electric Current Question 21
- Management Of Natural Resources Question 21
- Metals And Nonmetals Question 21
- Our Environment Question 21
- Periodic Classification Of Elements Question 21
- Reproduction Question 21
- Sources Of Energy Question 21
- Acids Bases And Salts Question 22
- Carbon Compounds Question 22
- Chemical Reactions Question 22
- Control And Coordination Question 22
- Electricity Question 22
- Heredity And Evolution Question 22
- Human Eye And The Colourful World Question 22
- Life Processes Question 22
- Light Reflection And Refraction Question 22
- Magnetic Effects Of Electric Current Question 22
- Management Of Natural Resources Question 22
- Metals And Nonmetals Question 22
- Our Environment Question 22
- Periodic Classification Of Elements Question 22
- Reproduction Question 22
- Sources Of Energy Question 22
- Acids Bases And Salts Question 23
- Carbon Compounds Question 23
- Chemical Reactions Question 23
- Control And Coordination Question 23
- Electricity Question 23
- Heredity And Evolution Question 23
- Human Eye And The Colourful World Question 23
- Life Processes Question 23
- Light Reflection And Refraction Question 23
- Magnetic Effects Of Electric Current Question 23
- Management Of Natural Resources Question 23
- Metals And Nonmetals Question 23
- Our Environment Question 23
- Periodic Classification Of Elements Question 23
- Reproduction Question 23
- Sources Of Energy Question 23
- Acids Bases And Salts Question 24
- Carbon Compounds Question 24
- Chemical Reactions Question 24
- Control And Coordination Question 24
- Electricity Question 24
- Heredity And Evolution Question 24
- Human Eye And The Colourful World Question 24
- Life Processes Question 24
- Light Reflection And Refraction Question 24
- Magnetic Effects Of Electric Current Question 24
- Management Of Natural Resources Question 24
- Metals And Nonmetals Question 24
- Our Environment Question 24
- Periodic Classification Of Elements Question 24
- Reproduction Question 24
- Sources Of Energy Question 24
- Acids Bases And Salts Question 25
- Carbon Compounds Question 25
- Chemical Reactions Question 25
- Control And Coordination Question 25
- Electricity Question 25
- Heredity And Evolution Question 25
- Human Eye And The Colourful World Question 25
- Life Processes Question 25
- Light Reflection And Refraction Question 25
- Magnetic Effects Of Electric Current Question 25
- Management Of Natural Resources Question 25
- Metals And Nonmetals Question 25
- Our Environment Question 25
- Periodic Classification Of Elements Question 25
- Reproduction Question 25
- Sources Of Energy Question 25
- Acids Bases And Salts Question 26
- Carbon Compounds Question 26
- Chemical Reactions Question 26
- Control And Coordination Question 26
- Electricity Question 26
- Heredity And Evolution Question 26
- Human Eye And The Colourful World Question 26
- Life Processes Question 26
- Light Reflection And Refraction Question 26
- Magnetic Effects Of Electric Current Question 26
- Management Of Natural Resources Question 26
- Metals And Nonmetals Question 26
- Our Environment Question 26
- Periodic Classification Of Elements Question 26
- Reproduction Question 26
- Sources Of Energy Question 26
- Acids Bases And Salts Question 27
- Carbon Compounds Question 27
- Chemical Reactions Question 27
- Control And Coordination Question 27
- Electricity Question 27
- Heredity And Evolution Question 27
- Human Eye And The Colourful World Question 27
- Life Processes Question 27
- Light Reflection And Refraction Question 27
- Magnetic Effects Of Electric Current Question 27
- Management Of Natural Resources Question 27
- Metals And Nonmetals Question 27
- Our Environment Question 27
- Periodic Classification Of Elements Question 27
- Reproduction Question 27
- Sources Of Energy Question 27
- Acids Bases And Salts Question 28
- Carbon Compounds Question 28
- Chemical Reactions Question 28
- Control And Coordination Question 28
- Electricity Question 28
- Heredity And Evolution Question 28
- Human Eye And The Colourful World Question 28
- Life Processes Question 28
- Light Reflection And Refraction Question 28
- Magnetic Effects Of Electric Current Question 28
- Management Of Natural Resources Question 28
- Metals And Nonmetals Question 28
- Our Environment Question 28
- Periodic Classification Of Elements Question 28
- Reproduction Question 28
- Sources Of Energy Question 28
- Acids Bases And Salts Question 29
- Carbon Compounds Question 29
- Chemical Reactions Question 29
- Control And Coordination Question 29
- Electricity Question 29
- Heredity And Evolution Question 29
- Human Eye And The Colourful World Question 29
- Life Processes Question 29
- Light Reflection And Refraction Question 29
- Magnetic Effects Of Electric Current Question 29
- Management Of Natural Resources Question 29
- Metals And Nonmetals Question 29
- Our Environment Question 29
- Periodic Classification Of Elements Question 29
- Reproduction Question 29
- Sources Of Energy Question 29
- Acids Bases And Salts Question 30
- Carbon Compounds Question 30
- Chemical Reactions Question 30
- Control And Coordination Question 30
- Electricity Question 30
- Heredity And Evolution Question 30
- Human Eye And The Colourful World Question 30
- Life Processes Question 30
- Light Reflection And Refraction Question 30
- Magnetic Effects Of Electric Current Question 30
- Management Of Natural Resources Question 30
- Metals And Nonmetals Question 30
- Our Environment Question 30
- Periodic Classification Of Elements Question 30
- Reproduction Question 30
- Sources Of Energy Question 30
- Acids Bases And Salts Question 31
- Carbon Compounds Question 31
- Chemical Reactions Question 31
- Control And Coordination Question 31
- Electricity Question 31
- Heredity And Evolution Question 31
- Human Eye And The Colourful World Question 31
- Life Processes Question 31
- Light Reflection And Refraction Question 31
- Magnetic Effects Of Electric Current Question 31
- Management Of Natural Resources Question 31
- Metals And Nonmetals Question 31
- Our Environment Question 31
- Periodic Classification Of Elements Question 31
- Reproduction Question 31
- Sources Of Energy Question 31
- Acids Bases And Salts Question 32
- Carbon Compounds Question 32
- Chemical Reactions Question 32
- Control And Coordination Question 32
- Electricity Question 32
- Heredity And Evolution Question 32
- Human Eye And The Colourful World Question 32
- Life Processes Question 32
- Light Reflection And Refraction Question 32
- Magnetic Effects Of Electric Current Question 32
- Management Of Natural Resources Question 32
- Metals And Nonmetals Question 32
- Our Environment Question 32
- Periodic Classification Of Elements Question 32
- Reproduction Question 32
- Sources Of Energy Question 32
- Acids Bases And Salts Question 33
- Carbon Compounds Question 33
- Chemical Reactions Question 33
- Control And Coordination Question 33
- Electricity Question 33
- Heredity And Evolution Question 33
- Human Eye And The Colourful World Question 33
- Life Processes Question 33
- Light Reflection And Refraction Question 33
- Magnetic Effects Of Electric Current Question 33
- Management Of Natural Resources Question 33
- Metals And Nonmetals Question 33
- Our Environment Question 33
- Periodic Classification Of Elements Question 33
- Reproduction Question 33
- Sources Of Energy Question 33
- Acids Bases And Salts Question 34
- Carbon Compounds Question 34
- Chemical Reactions Question 34
- Control And Coordination Question 34
- Electricity Question 34
- Heredity And Evolution Question 34
- Human Eye And The Colourful World Question 34
- Life Processes Question 34
- Light Reflection And Refraction Question 34
- Magnetic Effects Of Electric Current Question 34
- Management Of Natural Resources Question 34
- Metals And Nonmetals Question 34
- Our Environment Question 34
- Periodic Classification Of Elements Question 34
- Reproduction Question 34
- Sources Of Energy Question 34
- Acids Bases And Salts Question 35
- Carbon Compounds Question 35
- Chemical Reactions Question 35
- Control And Coordination Question 35
- Electricity Question 35
- Heredity And Evolution Question 35
- Human Eye And The Colourful World Question 35
- Life Processes Question 35
- Light Reflection And Refraction Question 35
- Magnetic Effects Of Electric Current Question 35
- Management Of Natural Resources Question 35
- Metals And Nonmetals Question 35
- Our Environment Question 35
- Periodic Classification Of Elements Question 35
- Reproduction Question 35
- Sources Of Energy Question 35
- Acids Bases And Salts Question 36
- Carbon Compounds Question 36
- Chemical Reactions Question 36
- Control And Coordination Question 36
- Electricity Question 36
- Heredity And Evolution Question 36
- Human Eye And The Colourful World Question 36
- Life Processes Question 36
- Light Reflection And Refraction Question 36
- Magnetic Effects Of Electric Current Question 36
- Management Of Natural Resources Question 36
- Metals And Nonmetals Question 36
- Our Environment Question 36
- Periodic Classification Of Elements Question 36
- Reproduction Question 36
- Sources Of Energy Question 36
- Acids Bases And Salts Question 37
- Carbon Compounds Question 37
- Chemical Reactions Question 37
- Control And Coordination Question 37
- Electricity Question 37
- Heredity And Evolution Question 37
- Human Eye And The Colourful World Question 37
- Life Processes Question 37
- Light Reflection And Refraction Question 37
- Magnetic Effects Of Electric Current Question 37
- Management Of Natural Resources Question 37
- Metals And Nonmetals Question 37
- Our Environment Question 37
- Periodic Classification Of Elements Question 37
- Reproduction Question 37
- Sources Of Energy Question 37
- Acids Bases And Salts Question 38
- Carbon Compounds Question 38
- Chemical Reactions Question 38
- Control And Coordination Question 38
- Electricity Question 38
- Heredity And Evolution Question 38
- Human Eye And The Colourful World Question 38
- Life Processes Question 38
- Light Reflection And Refraction Question 38
- Magnetic Effects Of Electric Current Question 38
- Management Of Natural Resources Question 38
- Metals And Nonmetals Question 38
- Our Environment Question 38
- Periodic Classification Of Elements Question 38
- Reproduction Question 38
- Sources Of Energy Question 38
- Acids Bases And Salts Question 39
- Carbon Compounds Question 39
- Chemical Reactions Question 39
- Control And Coordination Question 39
- Electricity Question 39
- Heredity And Evolution Question 39
- Human Eye And The Colourful World Question 39
- Life Processes Question 39
- Light Reflection And Refraction Question 39
- Magnetic Effects Of Electric Current Question 39
- Management Of Natural Resources Question 39
- Metals And Nonmetals Question 39
- Our Environment Question 39
- Periodic Classification Of Elements Question 39
- Reproduction Question 39
- Sources Of Energy Question 39
- Acids Bases And Salts Question 40
- Carbon Compounds Question 40
- Chemical Reactions Question 40
- Control And Coordination Question 40
- Electricity Question 40
- Heredity And Evolution Question 40
- Human Eye And The Colourful World Question 40
- Life Processes Question 40
- Light Reflection And Refraction Question 40
- Magnetic Effects Of Electric Current Question 40
- Management Of Natural Resources Question 40
- Metals And Nonmetals Question 40
- Our Environment Question 40
- Periodic Classification Of Elements Question 40
- Reproduction Question 40
- Acids Bases And Salts Question 41
- Carbon Compounds Question 41
- Chemical Reactions Question 41
- Control And Coordination Question 41
- Electricity Question 41
- Heredity And Evolution Question 41
- Human Eye And The Colourful World Question 41
- Life Processes Question 41
- Light Reflection And Refraction Question 41
- Magnetic Effects Of Electric Current Question 41
- Management Of Natural Resources Question 41
- Metals And Nonmetals Question 41
- Our Environment Question 41
- Periodic Classification Of Elements Question 41
- Reproduction Question 41
- Acids Bases And Salts Question 42
- Carbon Compounds Question 42
- Chemical Reactions Question 42
- Control And Coordination Question 42
- Electricity Question 42
- Heredity And Evolution Question 42
- Human Eye And The Colourful World Question 42
- Life Processes Question 42
- Light Reflection And Refraction Question 42
- Magnetic Effects Of Electric Current Question 42
- Management Of Natural Resources Question 42
- Metals And Nonmetals Question 42
- Our Environment Question 42
- Periodic Classification Of Elements Question 42
- Reproduction Question 42
- Acids Bases And Salts Question 43
- Carbon Compounds Question 43
- Control And Coordination Question 43
- Electricity Question 43
- Heredity And Evolution Question 43
- Human Eye And The Colourful World Question 43
- Life Processes Question 43
- Light Reflection And Refraction Question 43
- Magnetic Effects Of Electric Current Question 43
- Management Of Natural Resources Question 43
- Metals And Nonmetals Question 43
- Our Environment Question 43
- Periodic Classification Of Elements Question 43
- Reproduction Question 43
- Acids Bases And Salts Question 44
- Carbon Compounds Question 44
- Control And Coordination Question 44
- Electricity Question 44
- Heredity And Evolution Question 44
- Human Eye And The Colourful World Question 44
- Life Processes Question 44
- Light Reflection And Refraction Question 44
- Magnetic Effects Of Electric Current Question 44
- Management Of Natural Resources Question 44
- Metals And Nonmetals Question 44
- Our Environment Question 44
- Periodic Classification Of Elements Question 44
- Reproduction Question 44
- Acids Bases And Salts Question 45
- Carbon Compounds Question 45
- Control And Coordination Question 45
- Electricity Question 45
- Heredity And Evolution Question 45
- Human Eye And The Colourful World Question 45
- Life Processes Question 45
- Light Reflection And Refraction Question 45
- Management Of Natural Resources Question 45
- Our Environment Question 45
- Periodic Classification Of Elements Question 45
- Reproduction Question 45
- Acids Bases And Salts Question 46
- Carbon Compounds Question 46
- Control And Coordination Question 46
- Electricity Question 46
- Heredity And Evolution Question 46
- Human Eye And The Colourful World Question 46
- Life Processes Question 46
- Light Reflection And Refraction Question 46
- Management Of Natural Resources Question 46
- Our Environment Question 46
- Periodic Classification Of Elements Question 46
- Reproduction Question 46
- Acids Bases And Salts Question 47
- Carbon Compounds Question 47
- Control And Coordination Question 47
- Electricity Question 47
- Heredity And Evolution Question 47
- Human Eye And The Colourful World Question 47
- Life Processes Question 47
- Light Reflection And Refraction Question 47
- Management Of Natural Resources Question 47
- Our Environment Question 47
- Periodic Classification Of Elements Question 47
- Reproduction Question 47
- Acids Bases And Salts Question 48
- Carbon Compounds Question 48
- Control And Coordination Question 48
- Electricity Question 48
- Heredity And Evolution Question 48
- Human Eye And The Colourful World Question 48
- Life Processes Question 48
- Light Reflection And Refraction Question 48
- Management Of Natural Resources Question 48
- Our Environment Question 48
- Periodic Classification Of Elements Question 48
- Reproduction Question 48
- Acids Bases And Salts Question 49
- Carbon Compounds Question 49
- Control And Coordination Question 49
- Electricity Question 49
- Heredity And Evolution Question 49
- Human Eye And The Colourful World Question 49
- Life Processes Question 49
- Light Reflection And Refraction Question 49
- Management Of Natural Resources Question 49
- Our Environment Question 49
- Periodic Classification Of Elements Question 49
- Reproduction Question 49
- Acids Bases And Salts Question 50
- Carbon Compounds Question 50
- Control And Coordination Question 50
- Electricity Question 50
- Heredity And Evolution Question 50
- Human Eye And The Colourful World Question 50
- Life Processes Question 50
- Light Reflection And Refraction Question 50
- Our Environment Question 50
- Periodic Classification Of Elements Question 50
- Reproduction Question 50
- Acids Bases And Salts Question 51
- Carbon Compounds Question 51
- Control And Coordination Question 51
- Electricity Question 51
- Heredity And Evolution Question 51
- Human Eye And The Colourful World Question 51
- Life Processes Question 51
- Light Reflection And Refraction Question 51
- Our Environment Question 51
- Periodic Classification Of Elements Question 51
- Reproduction Question 51
- Acids Bases And Salts Question 52
- Carbon Compounds Question 52
- Control And Coordination Question 52
- Electricity Question 52
- Heredity And Evolution Question 52
- Life Processes Question 52
- Light Reflection And Refraction Question 52
- Our Environment Question 52
- Periodic Classification Of Elements Question 52
- Reproduction Question 52
- Acids Bases And Salts Question 53
- Carbon Compounds Question 53
- Control And Coordination Question 53
- Electricity Question 53
- Heredity And Evolution Question 53
- Life Processes Question 53
- Light Reflection And Refraction Question 53
- Our Environment Question 53
- Periodic Classification Of Elements Question 53
- Reproduction Question 53
- Acids Bases And Salts Question 54
- Carbon Compounds Question 54
- Electricity Question 54
- Heredity And Evolution Question 54
- Life Processes Question 54
- Light Reflection And Refraction Question 54
- Our Environment Question 54
- Periodic Classification Of Elements Question 54
- Reproduction Question 54
- Acids Bases And Salts Question 55
- Carbon Compounds Question 55
- Electricity Question 55
- Heredity And Evolution Question 55
- Life Processes Question 55
- Light Reflection And Refraction Question 55
- Our Environment Question 55
- Periodic Classification Of Elements Question 55
- Reproduction Question 55
- Acids Bases And Salts Question 56
- Carbon Compounds Question 56
- Electricity Question 56
- Heredity And Evolution Question 56
- Life Processes Question 56
- Light Reflection And Refraction Question 56
- Our Environment Question 56
- Periodic Classification Of Elements Question 56
- Reproduction Question 56
- Carbon Compounds Question 57
- Electricity Question 57
- Heredity And Evolution Question 57
- Life Processes Question 57
- Light Reflection And Refraction Question 57
- Our Environment Question 57
- Periodic Classification Of Elements Question 57
- Reproduction Question 57
- Carbon Compounds Question 58
- Electricity Question 58
- Heredity And Evolution Question 58
- Life Processes Question 58
- Light Reflection And Refraction Question 58
- Our Environment Question 58
- Periodic Classification Of Elements Question 58
- Reproduction Question 58
- Carbon Compounds Question 59
- Electricity Question 59
- Life Processes Question 59
- Light Reflection And Refraction Question 59
- Our Environment Question 59
- Periodic Classification Of Elements Question 59
- Reproduction Question 59
- Carbon Compounds Question 60
- Electricity Question 60
- Life Processes Question 60
- Light Reflection And Refraction Question 60
- Our Environment Question 60
- Periodic Classification Of Elements Question 60
- Reproduction Question 60
- Carbon Compounds Question 61
- Electricity Question 61
- Life Processes Question 61
- Light Reflection And Refraction Question 61
- Our Environment Question 61
- Periodic Classification Of Elements Question 61
- Reproduction Question 61
- Carbon Compounds Question 62
- Electricity Question 62
- Life Processes Question 62
- Light Reflection And Refraction Question 62
- Our Environment Question 62
- Periodic Classification Of Elements Question 62
- Reproduction Question 62
- Carbon Compounds Question 63
- Life Processes Question 63
- Light Reflection And Refraction Question 63
- Our Environment Question 63
- Reproduction Question 63
- Carbon Compounds Question 64
- Life Processes Question 64
- Light Reflection And Refraction Question 64
- Our Environment Question 64
- Reproduction Question 64
- Carbon Compounds Question 65
- Life Processes Question 65
- Light Reflection And Refraction Question 65
- Our Environment Question 65
- Reproduction Question 65
- Carbon Compounds Question 66
- Life Processes Question 66
- Light Reflection And Refraction Question 66
- Our Environment Question 66
- Reproduction Question 66
- Carbon Compounds Question 67
- Life Processes Question 67
- Light Reflection And Refraction Question 67
- Our Environment Question 67
- Reproduction Question 67
- Carbon Compounds Question 68
- Life Processes Question 68
- Light Reflection And Refraction Question 68
- Reproduction Question 68
- Carbon Compounds Question 69
- Light Reflection And Refraction Question 69
- Reproduction Question 69
- Carbon Compounds Question 70
- Light Reflection And Refraction Question 70
- Reproduction Question 70
- Carbon Compounds Question 71
- Light Reflection And Refraction Question 71
- Reproduction Question 71
- Carbon Compounds Question 72
- Light Reflection And Refraction Question 72
- Reproduction Question 72
- Carbon Compounds Question 73
- Light Reflection And Refraction Question 73
- Reproduction Question 73
- Carbon Compounds Question 74
- Light Reflection And Refraction Question 74
- Reproduction Question 74
- Carbon Compounds Question 75
- Light Reflection And Refraction Question 75
- Reproduction Question 75
- Carbon Compounds Question 76
- Light Reflection And Refraction Question 76
- Carbon Compounds Question 77
- Light Reflection And Refraction Question 77
- Carbon Compounds Question 78
- Light Reflection And Refraction Question 78
- Carbon Compounds Question 79
- Light Reflection And Refraction Question 79
- Carbon Compounds Question 80
- Light Reflection And Refraction Question 80
- Carbon Compounds Question 81
- Light Reflection And Refraction Question 81
- Carbon Compounds Question 82
- Light Reflection And Refraction Question 82
- Carbon Compounds Question 83
- Light Reflection And Refraction Question 83
- Carbon Compounds Question 84
- Light Reflection And Refraction Question 84
- Carbon Compounds Question 85
- Light Reflection And Refraction Question 85
- Carbon Compounds Question 86
- Light Reflection And Refraction Question 86
- Light Reflection And Refraction Question 87
- Light Reflection And Refraction Question 88
- Light Reflection And Refraction Question 89
Control And Coordination Question 46
Question: Q. 4. (i) Define reflex arc. Draw a flowchart showing the sequence of events which occur during sneezing.
(ii) List four plant hormones. Write one function of each. C [DDE-2015, 17, CBSE Term-I, 2015]
Show Answer
Solution:
(i) The pathway taken by nerve impulses in a reflex action is called the reflex arc.
Sequences of events, which occur during sneezing, are:
Nerve endings located in the nasal passage identifies the irritant entered in the nose.
Receptors send the information or nerve impulses to the sneezing centre located in the brain stem.
Brain stem in return sends the instructions to the lungs or diaphragm for response
Diaphragm moves abruptly, chest muscles contract in response to the instructions received.
Air blows out from nose and mouth instantly and
Sneezing occurs in response to the irritant
(ii) Auxin: It promotes elongation and division of cell and root formation.
Gibberellins: They help in growth of stem and also induce internodal growth in genetically dwarf varieties of plants. Cytokinins: They promote cell division and delay leaf ageing.
Abscisic acid: It inhibits growth.
