Complete the following equations :
(i) `PCl_(5)overset("heat")rarr`
(ii) `C+"Conc."H_(2)SO_(4)rarr`

Explanation

To complete the given equations, let's go through each step systematically.

### Step 1: Decomposition of PCl5
The first equation is:
\[ \text{PCl}_5 \xrightarrow{\text{heat}} \]

**Explanation:**
When phosphorus pentachloride (PCl5) is heated, it undergoes thermal decomposition. The reaction involves the breakdown of PCl5 into phosphorus trichloride (PCl3) and chlorine gas (Cl2).
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