Acids and bases in water — task. Chemistry CBSE Live product, Class 10 (2026-27).

Choose the best answer:

1. How is the strength of a base affected when its solution is diluted with water?

Strength remains the same, but concentration decreases
The strength of the base increases
Strength of the base becomes zero
The base converts into an acid

2. Why does dry \(HCl\) gas not change the colour of the dry litmus paper?

Dry \(HCl\) does not dissociate to give \(H^+\) ions
Dry \(HCl\) is not considered as an acid
Dry \(HCl\) can act as both acid and base
Dry \(HCl\) does not dissociate to give \(OH^-\) ions

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