What chemical is added to washing powders for bleaching action .

Options

A. Sodium perborate
B. Sodium carbonate
C. Sodium sulphate
D. Both 1 and 2

Answer

To answer the question regarding what chemical is added to washing powders for bleaching action, we can break down the information provided in the video transcript step by step.

### Step-by-Step Solution:

1. **Identify the Purpose of Chemicals in Washing Powders**:
- Washing powders often contain various chemicals to enhance their cleaning properties, one of which is to provide bleaching action.

2. **Recognize the Key Chemical for Bleaching**:
- The primary chemical mentioned for bleaching action in washing powders is **Sodium perborate**.

3. **Understand the Function of Sodium Perborate**:
- Sodium perborate acts as a stable source of active oxygen. This active oxygen is what contributes to the bleaching effect, helping to remove stains and whiten clothes.

4. **Structure of Sodium Perborate**:
- Sodium perborate has a specific chemical structure that includes boron (B) and oxygen (O) atoms. It is important to note that it has a negative charge due to the bonding of boron and oxygen.

5. **Other Chemicals Mentioned**:
- While Sodium perborate is the primary bleaching agent, other chemicals like sodium carbonate (Na2CO3) and sodium sulfate (Na2SO4) are also mentioned, but they serve different purposes (cleaning and drying respectively).

6. **Conclusion**:
- Therefore, the chemical added to washing powders for bleaching action is **Sodium perborate**.

### Final Answer:
The chemical added to washing powders for bleaching action is **Sodium perborate**.

---