10 volumes of H₂O₂ has a strength of approximately:

1. 3%

2. 30%

3. 10%

4. 5%

Which is not true in case of H₂O₂?

1. It is more stable in basic solution

2. It acts as strong oxidising agent in acid and basic solutions

3. It is decomposed by MnO₂

4. It behaves as reducing agent towards KMnO₄

Decmposition of H₂O₂ is retarded by:

1. acetanilide

2. alcohol

3. H₃PO₄

4. all of these

The volume strength of 1.5N H₂O₂ Solution is :

1. 4.8

2. 8.4

3. 3.0

4. 8.0

When H₂O₂ is added to acidic ferrous sulphate solution:

1. electrons are gained by Fe²⁺

2. electrons are lost by Fe²⁺

3. there is no loss or gain of electrons

4. iron hydroxide precipitates