4. Multiple Choice Question Answer IV

3 m.

1. When a base is dissolved in water

Concentration of \(OH^–\) ions per unit volume decreases
No change in concentration of \(OH^–\) ions per unit volume occurs
Concentration of \(OH^–\) ions per unit volume increases
Concentration of \(OH^–\) ions per unit volume may increase or decrease depending upon the nature of the base

2. Which one of the following is a weak acid ?

3. Color of methyl orange in acid solution is

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