Complete the followning :
(i) `CH_(3)COCH_(3) + HI overset("Red"P//423K)rarr`
(ii) `CH_(2)=CH_(2) + PdCl_(2) + H_(2)Ooverset(CaCl_(2))rarr`

Explanation

Let's solve the given reactions step by step.

### (i) Reaction:
**Given:**
\[ \text{CH}_3\text{COCH}_3 + \text{HI} \overset{\text{Red P, 423 K}}{\rightarrow} \]

1. **Identify the Reactants:**
- The reactant is acetone, which is represented as \(\text{CH}_3\text{COCH}_3\).
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