Fill in the blanks to make true statements.
When electric current is passed through water containing a small amount of dilute sulphuric acid, then
Hydrogen gas is liberated at the — (nega tive/positive) electrode called

Explanation

To fill in the blanks correctly, we need to understand the process that occurs when electric current is passed through water containing dilute sulphuric acid. Here’s the step-by-step solution:

1. **Understanding Electrolysis**: When electric current is passed through water mixed with dilute sulphuric acid, the process known as electrolysis occurs. This process involves the breakdown of water (H₂O) into its constituent gases, hydrogen (H₂) and oxygen (O₂).

2. **Identifying the Electrodes**: In electrolysis, there are two electrodes: the anode (positive electrode) and the cathode (negative electrode). The anode is where oxidation occurs, and the cathode is where reduction occurs.

3. **Gas Liberation at Electrodes**:
- At the anode, oxygen gas is liberated due to the oxidation of water.
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