Calcium carbide + heavy water `rarr` ?
The product of the above reaction is :

Options

A. `C_(2)H_(2)`
B. `CaD_(2)`
C. `Ca(OD)_(2)`
D. `CD_(4)`

Explanation

To solve the question regarding the reaction of calcium carbide with heavy water, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reactants**:
- The reactants in this reaction are calcium carbide (CaC2) and heavy water (D2O).

2. **Write the Chemical Reaction**:
- When calcium carbide reacts with heavy water, the reaction can be represented as:
\[ \text{CaC}_2 + \text{D}_2\text{O} \rightarrow \text{C}_2\text{D}_2 + \text{Ca(OD)}_2 \]

3. **Identify the Products**:
- The products of this reaction are:
- Deuterosacetylene (C2D2)
- Calcium deuteroxide (Ca(OD)2)

4. **Conclusion**:
- Therefore, the products formed from the reaction of calcium carbide with heavy water are C2D2 and Ca(OD)2. Among the options provided, the correct answer is Ca(OD)2, which is calcium deuteroxide.

### Final Answer:
The product of the reaction between calcium carbide and heavy water is Ca(OD)2 (calcium deuteroxide).

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