SATHEE: P-Block Elements Ques 595

P-Block Elements Ques 595

Question: From the following information $X + H_{2} S O_{4} \to Y$ (a colourless arid irritating gas) $Y + K_{2} C r_{2} + H_{2} S O_{4} \to$ (green coloured solution) Identify the pair X and Y.

Options:

A) $\overset{―}{C} r, H C l$

B) $S O_{3}^{2 -}, S O_{2}$

C) $S^{2 -}, H_{2} S$

D) $C O_{3}^{2 -}, C O_{2}$

Show Answer

Answer:

Correct Answer: B

Solution:

$\underset{(X)}{S O_{3}^{2 -}} + 2 H^{\oplus} \to S O_{2} + H_{2} O$ $\underset{(Y)}{3 S O_{2}} + K_{2} C r_{2} O_{7} + H_{2} S O_{4} \to$ $K_{2} S O_{4} + \underset{\begin{matrix} G r e e n c o l o u r e d \\ s o l u t i o n \end{matrix}}{C r_{2} {(S O_{4})}_{2} + H_{2} O}$

P-Block Elements Ques 595

Question: From the following information $X + H_{2} S O_{4} \to Y$ (a colourless arid irritating gas) $Y + K_{2} C r_{2} + H_{2} S O_{4} \to$ (green coloured solution) Identify the pair X and Y.

Options:

Answer:

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

P-Block Elements Ques 595

Question: From the following information X+H2SO4→Y (a colourless arid irritating gas) Y+K2Cr2+H2SO4→ (green coloured solution) Identify the pair X and Y.

Options:

Answer:

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

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Question: From the following information $X + H_{2} S O_{4} \to Y$ (a colourless arid irritating gas) $Y + K_{2} C r_{2} + H_{2} S O_{4} \to$ (green coloured solution) Identify the pair X and Y.