Dry distillation of a mixture of the calcium salts of acetic acid and propionic acid will yield

Options

A. methyl ethyl ketone
B. acetic acid
C. acetone
D. acetaldehyde

Explanation

To solve the problem of what products are yielded from the dry distillation of a mixture of the calcium salts of acetic acid and propionic acid, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Calcium Salts**:
- The calcium salt of acetic acid is calcium acetate (Ca(C2H3O2)2).
- The calcium salt of propionic acid is calcium propionate (Ca(C3H5O2)2).

2. **Understand Dry Distillation**:
- Dry distillation involves heating the salts without the presence of water, leading to the breakdown of the salts and the formation of new products.

3. **Decomposition of Calcium Acetate**:
- When calcium acetate is subjected to dry distillation, it decomposes to form acetone (C3H6O) and calcium oxide (CaO).
- The reaction can be summarized as:
\[ Ca(C2H3O2)2 \rightarrow C3H6O + CaO + CO2 \]

4. **Decomposition of Calcium Propionate**:
- Similarly, calcium propionate decomposes to yield propionaldehyde (C2H4O) and calcium oxide (CaO).
- The reaction can be summarized as:
\[ Ca(C3H5O2)2 \rightarrow C2H4O + CaO + CO2 \]

5. **Combine the Products**:
- From the dry distillation of both calcium salts, we obtain:
- Acetone from calcium acetate.
- Propionaldehyde from calcium propionate.

6. **Final Products**:
- Therefore, the final products from the dry distillation of a mixture of calcium salts of acetic acid and propionic acid are acetone and propionaldehyde.

### Conclusion:
The dry distillation of a mixture of the calcium salts of acetic acid and propionic acid will yield acetone and propionaldehyde.

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