Question

# Which of the following is a basic salt?(A) $SnC{l_2}$ (B) NaCl(C) $N{H_4}Cl$ (D) $C{H_3}COONa$

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Hint: Any salt that hydrolyses to form a basic solution is a basic salt. Chloride ions being weakly acidic do not get hydrolysed and in its place they exchange ions.

Hence salts containing chloride ions ($C{l^ - }$) or chloride salts cannot be basic salts and so $SnC{l_2}$, NaCl and $N{H_4}Cl$ are not basic salts.
-Sodium acetate ($C{H_3}COONa$) is the sodium salt of acetic acid ($C{H_3}COOH$) which is a weak acid. Also a solution of acetic acid and sodium acetate acts as a buffer and keeps the pH constant. This solution is known as vinegar.
So, sodium acetate ($C{H_3}COONa$) is a basic salt.