Bleaching of a fabric cloth is done using A and excess of chlorine is removed using B.A and B are :

Options

A. `CaOCl_(2), Na_(2)SO_(3)`
B. `Na_(2)S_(2)O_(3), CaOCl_(2)`
C. `CaCl_(2), Na_(2)S_(2)O_(3)`
D. `CaOCl_(2), Na_(2)S_(2)O_(3)`

Explanation

To solve the question regarding the bleaching of fabric cloth and the removal of excess chlorine, we can break it down into the following steps:

### Step-by-Step Solution:

1. **Identify the Bleaching Agent (A)**:
- The bleaching agent commonly used for fabric is Calcium Oxychloride, which is represented as \( \text{Ca(OCl)}_2 \). This compound is effective in bleaching due to its ability to release chlorine when it reacts with water.
- Reaction:
\[ \text{Ca(OCl)}_2 + \text{H}_2\text{O} \rightarrow \text{Ca(OH)}_2 + \text{Cl}_2 \]

2. **Identify the Agent to Remove Excess Chlorine (B)**:
- After bleaching, excess chlorine gas (\( \text{Cl}_2 \)) is often present. To remove this excess chlorine, Sodium Thiosulfate (\( \text{Na}_2\text{S}_2\text{O}_3 \)) is used. This compound reacts with chlorine to neutralize it.
- Reaction:
\[ 4 \text{Cl}_2 + 5 \text{H}_2\text{O} \rightarrow 2 \text{Na}_2\text{S}_2\text{O}_3 + 8 \text{HCl} \]

3. **Final Identification**:
- From the above reactions, we can conclude that:
- \( A \) (the bleaching agent) is \( \text{Ca(OCl)}_2 \)
- \( B \) (the agent to remove excess chlorine) is \( \text{Na}_2\text{S}_2\text{O}_3 \)

4. **Conclusion**:
- Therefore, the answers are:
- \( A = \text{Ca(OCl)}_2 \)
- \( B = \text{Na}_2\text{S}_2\text{O}_3 \)