Alcohols Phenols And Ethers Question 212
Question: In the following series of chemical reactions, identify Z $ C_3H_7OH\underset{160-180^{o}C}{\mathop{\xrightarrow{Conc.H_2SO_4}}}X\underset{{}}{\mathop{\xrightarrow{Br_2}}}Y\underset{Alc.KOH}{\mathop{\xrightarrow{\text{Excess of}}}}Z $
[Manipal MEE 1995]
Options:
A) $ \underset{\underset{NH_2NH_2}{\mathop{||}}}{\mathop{CH_3-CH-CH_2}} $
B) $ \underset{\underset{OHOH}{\mathop{||}}}{\mathop{CH_3-CH-CH_2}} $
C) $ \underset{\underset{OH}{\mathop{|}}}{\mathop{CH_3-C=CH_2}} $
D) $ CH_3C\equiv CH $
Show Answer
Answer:
Correct Answer: D
Solution:
$ CH_3CH_2CH_2OH\underset{160-180^{o}C}{\mathop{\xrightarrow{conc\text{.}H_2SO_4}}}CH_3CH=CH_2 $
$ \xrightarrow{Br_2}CH_3-\underset{Br}{\mathop{\underset{|}{\mathop{CH}}}}-\underset{Br}{\mathop{\underset{|}{\mathop{CH_2}}}}\xrightarrow{Alc.KOH}\underset{Propyne}{\mathop{CH_3-C\equiv CH}} $
BETA
