Question

The alkali metal bicarbonate that has no existence in solid state, is:

• A. $NaHC{O}_3$
• B. $KHC{O}_3$
• C. $LiHC{O}_3$
• D. none of the above

Answer 1

The correct option is C $LiHC{O}_3$

Li differs from the rest of the family members and shows anomalous behaviour. Lithium bicarbonate found in solution form while other bicarbonates of alkali metals exist in solid-state. Its anomalous behaviour is due to the following reasons:-

1. Its exceptionally small size

2. High polarizing power.

So, $LiHC{O}_3$ does not exist in solid-state.

Hence, the correct option is $\text{C}$