Question
Chemistry Question on Aldehydes, Ketones and Carboxylic Acids
If formaldehyde and KOH are heated then we get
A
Acetylene
B
Methane
C
Methyl alcohol
D
Ethyl formate
Answer
Methyl alcohol
Explanation
Solution
When α-hydrogen is absent in carbonyl group, those compound gives cannizaro reaction. This reaction show disproportionation. The oxidation product is salt of carboxylic acid and reduced product is alcohol. HCHO+HCHOKOH(conc.)CH3OHMethylalcohol+HCOO−K+