Calculate the oxidation number of
(i) `S` in `H_(2)S`,

(ii) `C` in `CO_(2)`
(iii)`C` in `CH_(2)CI_(2)`,
(iv) `N` in `(NH_(4))SO_(4)`
(v)`P` in `Na_(3)PO_(4)`

Explanation

To calculate the oxidation numbers of the specified elements in the given compounds, we follow a systematic approach. Let's break it down step by step for each part of the question.

### (i) Calculate the oxidation number of `S` in `H₂S`

1. **Identify the oxidation states of hydrogen (H)**: In compounds, hydrogen typically has an oxidation state of +1.
2. **Set up the equation**: The compound H₂S is neutral, so the sum of oxidation states must equal 0.
\[
2(+1) + X + 0 = 0
...