Dry distillation of calcium acetate gives `:`

Options

A. Acetaldehyde
B. Ethane
C. Acetic acid
D. Acetone

Answer

To solve the question regarding the dry distillation of calcium acetate, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Dry Distillation**:
- Dry distillation refers to the heating of a solid organic compound in the absence of water to produce gaseous products. In this case, we are focusing on calcium acetate.

2. **Chemical Structure of Calcium Acetate**:
- Calcium acetate can be represented as \( \text{Ca(C}_2\text{H}_3\text{O}_2\text{)}_2 \) or structurally as \( \text{O-C(=O)-CH}_3 \) for each acetate group. Thus, calcium acetate consists of two acetate groups bound to a calcium ion.

3. **Heating Calcium Acetate**:
- Upon heating calcium acetate, it undergoes a decomposition reaction. The thermal decomposition leads to the breaking of bonds in the acetate groups.

4. **Products of Dry Distillation**:
- The reaction can be represented as follows:
\[ \text{Ca(C}_2\text{H}_3\text{O}_2\text{)}_2 \xrightarrow{\text{heat}} \text{CH}_3\text{C(=O)CH}_3 + \text{CaO} + \text{CO}_2 \]
- Here, the products formed are:
- **Acetone** (\( \text{CH}_3\text{C(=O)CH}_3 \))
- **Calcium oxide** (\( \text{CaO} \))
- **Carbon dioxide** (\( \text{CO}_2 \))

5. **Conclusion**:
- Therefore, the dry distillation of calcium acetate yields acetone as one of the main products along with calcium oxide and carbon dioxide.

### Final Answer:
Dry distillation of calcium acetate gives **acetone**.

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