Give reasons
Aluminium utensils should not be kept in water overnight.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Reaction**: When aluminum utensils are kept in water, they can react with water in the presence of oxygen from the atmosphere. This reaction leads to the formation of aluminum oxide and the release of hydrogen gas.

- **Chemical Reaction**:
\[ 4Al + 3O_2 + 6H_2O \rightarrow 4Al(OH)_3 + 3H_2 \]
...