Question

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. $Zn\text{-}Hg/conc.HCl$

Answer 1

Answer: (D)

$Zn\text{-}Hg/conc.HCl$

Answer 2

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.