The inorganic compound that on heating gives organic compound is

Options

A. Sodamide
B. Sodalime
C. Potassium cyanide
D. Ammonium cyanate

Answer

To solve the question regarding which inorganic compound gives an organic compound upon heating, we can analyze the options provided:

1. **Sodium amide (NaNH2)**: This is an inorganic compound, but it does not directly yield an organic compound upon heating.

2. **Soda-lime (NaOH + CaO)**: This is a mixture used in various reactions, but it does not directly produce an organic compound when heated.

3. **Potassium cyanide (KCN)**: While this is an inorganic compound, it does not produce an organic compound upon heating.

4. **Ammonium cyanate (NH4OCN)**: This is an inorganic compound that, upon heating, decomposes to form urea (NH2CO), which is an organic compound.

### Step-by-step solution:

1. **Identify the Inorganic Compounds**: List the given compounds and identify which ones are inorganic.
- Sodium amide (NaNH2)
- Soda-lime (NaOH + CaO)
- Potassium cyanide (KCN)
- Ammonium cyanate (NH4OCN)

2. **Analyze the Heating Reaction**: Determine if heating any of these compounds produces an organic compound.
- Sodium amide does not yield an organic compound upon heating.
- Soda-lime does not yield an organic compound upon heating.
- Potassium cyanide does not yield an organic compound upon heating.
- Ammonium cyanate, when heated, decomposes to form urea, which is an organic compound.

3. **Conclusion**: The only inorganic compound that produces an organic compound upon heating is ammonium cyanate, which yields urea.

4. **Final Answer**: The inorganic compound that on heating gives an organic compound is **Ammonium cyanate (NH4OCN)**.