Question

Assertion (A): The aqueous solution of $CH_3COONa$ is alkaline in nature.
Reason (R): Acetate ion undergoes anionic hydrolysis
The correct answer is

• A. both (A) and (R) are true and (R) is the correct explanation of (A).
• B. both (A) and (R) are true but (R) is not the correct explanation of (A).
• C. (A) is true but (R) is not true.
• D. (A) is not true but (R) is true.

Answer 1

Answer: (A)

$CH _{3} COONa + H _{2} O \rightarrow CH _{3} COOH + NaOH$
The above process takes place in following steps
$CH _{3} COONa$ lonisation $CH _{3} COO ^{-}+ Na ^{+}$in aqueous solution strong base
$CH _{3} COO ^{-}+ H _{2} O \rightarrow CH _{3} COOH + OH ^{-}$
Acetate ion undergoes hydrolysis and the resulting solution is slightly basic due to excess of $O H^{-}$ions.