Organic Compounds Containing Halogens Question 108
Question: Which of the following reactions gives $ H_2C=C=C=CH_2 $
[Roorkee Qualifying 1998]
Options:
A) $ CH_2Br-CBr=CH_2\xrightarrow{Zn/Ch_3OH} $
B) $ HC\equiv C-CH_2-COOH\underset{40^{o}C}{\mathop{\xrightarrow{Aq.K_2CO_3}}} $
C) $ CH_2Br-C\equiv C-CH_2Br\underset{Heat}{\mathop{\xrightarrow{Zn}}} $
D) $ 2CH_2=CH-CH_2I\underset{{}}{\mathop{\xrightarrow{{}}}} $
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Answer:
Correct Answer: C
Solution:
$ CH_2Br-C\equiv C-CH_2Br\underset{\Delta }{\mathop{\xrightarrow{Zn}}} $
$ CH_2=C=C=CH_2 $
BETA
