An inorganic salt (A) is decomposed on heating to give two products (B) and (C). Compound (C) is a liquid at room temperature and is neutral to litmus while compound (B) is a colourless neutral gas. Compounds (A), (B) and (C) are

Options

A. `NH_(4)NO_(3), N_(2)O, H_(2)O`
B. `NH_(4)NO_(2), NO, H_(2)O`
C. `CaO, H_(2)O, CaCl_(2)`
D. `Ba(NO_(3))_(2), H_(2)O, NO_(2)`

Explanation

To solve the question step by step, we need to identify the inorganic salt (A) that decomposes to form two products (B and C), where B is a colorless neutral gas and C is a liquid at room temperature that is neutral to litmus.

### Step 1: Identify the Properties of Compounds B and C
- **Compound B**: It is a colorless neutral gas.
- **Compound C**: It is a liquid at room temperature and is neutral to litmus.

### Step 2: Consider Possible Inorganic Salts
We need to think of inorganic salts that can decompose to produce a gas and a liquid. A common inorganic salt that fits this description is ammonium nitrate (NH4NO3).

### Step 3: Decomposition of Ammonium Nitrate
When ammonium nitrate (NH4NO3) is heated, it decomposes as follows:
\[ 2 \, NH_4NO_3 \rightarrow N_2O + 2 \, H_2O \]
- Here, **B (N2O)** is the colorless neutral gas.
- **C (H2O)** is the liquid that is neutral to litmus.

### Step 4: Verify the Conditions
- **B (N2O)**: It is indeed a colorless gas and neutral.
- **C (H2O)**: Water is a liquid at room temperature and is neutral to litmus.

### Step 5: Conclusion
Based on the decomposition reaction and the properties of the products, we conclude:
- Compound A: NH4NO3 (Ammonium nitrate)
- Compound B: N2O (Dinitrous oxide)
- Compound C: H2O (Water)

### Final Answer
- Compounds (A), (B), and (C) are:
- A: NH4NO3
- B: N2O
- C: H2O