Some Basic Principles Of Organic Chemistry Question 13
Question: In which of the compounds given below is there more than one kind of hybridisation $ (sp,sp^{2},sp^{3}) $ for carbon (i) $ CH_3CH_2CH_2CH_3 $ (ii) $ CH_3-CH=CH-CH_3 $ (iii) $ CH_2=CH-CH=CH_2 $ (iv) $ H-C\equiv C-H $ [CBSE PMT 1995]
Options:
A) (ii) and (iv)
B) (i) and (iv)
C) (ii) and (iii)
D) (ii)
Show Answer
Answer:
Correct Answer: D
Solution:
(i) $ \overset{sp^{3}}{\mathop{CH_3}},-\overset{sp^{3}}{\mathop{CH_2}},-\overset{sp^{3}}{\mathop{CH_2}},-\overset{sp^{3}}{\mathop{CH_3}}, $ only $ sp^{3} $ hybridized carbon
(ii) $ \overset{sp^{3}}{\mathop{CH_3}},-\overset{sp^{2}}{\mathop{CH}},=\overset{sp^{2}}{\mathop{CH}},-\overset{sp^{3}}{\mathop{CH_3}}, $ Both $ sp^{2} $ and $ sp^{3} $ hybridized carbon.
(iii) $ \overset{sp^{2}}{\mathop{CH_2}},=\overset{sp^{2}}{\mathop{CH}},-\overset{sp^{2}}{\mathop{CH}},=\overset{sp^{2}}{\mathop{CH_2}}, $ Only $ sp^{2} $ hybridized carbon.
(iv) $ H-\underset{sp}{\mathop{C}},\equiv \underset{sp}{\mathop{C}},-H $ Only sp hybridized carbon.
