Dry heating of calcium acetate gives

Options

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

Explanation

To determine the product obtained from the dry heating of calcium acetate, we can follow these steps:

### Step 1: Understand the Composition of Calcium Acetate
Calcium acetate is a salt formed from acetic acid and calcium hydroxide. Its chemical formula is \( \text{Ca(CH}_3\text{COO)}_2 \). This means it contains two acetate ions (\( \text{CH}_3\text{COO}^- \)) and one calcium ion (\( \text{Ca}^{2+} \)).

### Step 2: Write the Reaction for Dry Heating
When calcium acetate is dry heated, it undergoes thermal decomposition. The reaction can be represented as:
\[ \text{Ca(CH}_3\text{COO)}_2 \xrightarrow{\text{heat}} \text{CaCO}_3 + \text{products} \]
Here, calcium carbonate (\( \text{CaCO}_3 \)) is formed as a byproduct.

### Step 3: Identify the Main Product
During the decomposition of calcium acetate, the acetate ions break down to produce acetone (\( \text{CH}_3\text{COCH}_3 \)). The reaction can be simplified as:
\[ \text{2 CH}_3\text{COO}^- \rightarrow \text{CH}_3\text{COCH}_3 + \text{CO}_2 + \text{H}_2\text{O} \]
Thus, the main product formed is acetone.

### Step 4: Conclusion
After dry heating calcium acetate, the primary product obtained is acetone. Therefore, the correct answer from the options provided is acetone.

### Final Answer
The product obtained from the dry heating of calcium acetate is **acetone**.

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