A solution reacts with crushed egg-shells to give a gas that turns lime-water milky. The solution contains
(i) NaCl
(ii) HCl
(iii) LiCl
(iv) KCl

Options

A. NaCl
B. HCl
C. LiCl
D. KCl

Explanation

To determine which solution reacts with crushed egg-shells to produce a gas that turns lime-water milky, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Composition of Eggshells**:
- Crushed egg-shells primarily consist of calcium carbonate (CaCO₃).

2. **Understand the Reaction**:
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