Hydrocarbons Question 380
Question: Alkene $ R-C-H=CH_2 $ reacts readily with $ B_2H _{56} $ and the product on oxidation with alkaline hydrogen peroxides produces [CBSE PMT 1995]
Options:
A) $ R-CH_2-CHO $
B) $ R-CH_2-CH_2-OH $
C) $ \underset{O}{\mathop{\underset{||}{\mathop{R-C-CH_3}}}} $
D) $ \underset{OHOH}{\mathop{\underset{||}{\mathop{R-CH-CH_3}}}} $
Show Answer
Answer:
Correct Answer: B
Solution:
$ 3R-CH=CH_2+\frac{1}{2}B_2H_6\underset{Ether}{\mathop{\xrightarrow{Dry}}}{{(R-CH_2CH_2)}_3}B $
$ \overset{\begin{matrix} {} \\ {} \\ \end{matrix}}{\mathop{\underset{Alcohol}{\mathop{3R-CH_2CH_2OH}}}} $
BETA
