question_answer

Which of the following reagents converts both acetaldehyde and acetone to alkanes?

A) \[Ni/{{H}_{2}}\]               

B)        \[LiAl{{H}_{4}}\]

C)        \[{{I}_{2}}/NaOH\]                         

D)        \[Zn\text{-}Hg/conc.HCl\]

Correct Answer: D

Solution :

Clemmensens reduction (conc.\[HCl/Zn-Hg)\]or Wolf-Kishner reduction \[({{C}_{2}}{{H}_{5}}ONa/N{{H}_{2}}N{{H}_{2}})\] can be used to convert \[>C=O\] group into \[>C{{H}_{2}}\] group.