When electrolysis of water is done then :
(a) Identify the gases evolved at cathode and anode. (write equations also)
(b) Why is amount of gas collected in double of the other ? Name this gas .

Explanation

To solve the question regarding the electrolysis of water, we will break it down into two parts as requested.

### Part (a): Identify the gases evolved at cathode and anode with equations

1. **Understanding Electrolysis of Water**:
- When water (H₂O) undergoes electrolysis, it is broken down into its constituent gases: hydrogen and oxygen.

2. **Identifying the Electrodes**:
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