S Block Elements Question 231
Question: Which one of the following salts gives aqueous solution which is weakly basic
[Bihar CEE 1995]
Options:
A) $ NaHCO_3 $
B) $ NaHSO_4 $
C) $ NaCl $
D) $ NH_4HCO_3 $
Show Answer
Answer:
Correct Answer: A
Solution:
$ \underset{\begin{smallmatrix} \text{(Salt of strong} \\ \text{base }\And\text{ weak} \\ \text{acid)} \end{smallmatrix}}{\mathop{NaHCO_3}}\to N{{a}^{+}}+\underset{O{{H}^{-}}+CO_2}{\mathop{\underset{\downarrow }{\mathop{HCO_3^{-}}}}} $