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

Acidified solution of chromic acid on treatement with H₂O₂ yields :

1. ${\mathrm{CrO}}_3<mspace\; width="1em"></mspace>+<mspace\; width="1em"></mspace>{\mathrm{H}}_2\mathrm{O}<mspace\; width="1em"></mspace>+<mspace\; width="1em"></mspace>{\mathrm{O}}_2$

2. ${\mathrm{Cr}}_2{\mathrm{O}}_2<mspace\; width="1em"></mspace>+<mspace\; width="1em"></mspace>{\mathrm{H}}_2\mathrm{O}<mspace\; width="1em"></mspace>+<mspace\; width="1em"></mspace>{\mathrm{O}}_2$

3. ${\mathrm{CrO}}_5<mspace\; width="1em"></mspace>+<mspace\; width="1em"></mspace>{\mathrm{H}}_2\mathrm{O}<mspace\; width="1em"></mspace>+<mspace\; width="1em"></mspace>{\mathrm{K}}_2{\mathrm{SO}}_4$

4. ${\mathrm{H}}_2{\mathrm{Cr}}_2{\mathrm{O}}_7<mspace\; width="1em"></mspace>+<mspace\; width="1em"></mspace>{\mathrm{H}}_2\mathrm{O}<mspace\; width="1em"></mspace>+<mspace\; width="1em"></mspace>{\mathrm{O}}_2$

Decomposition of H₂O₂ is accompanied by:

1. decrease in free energy

2. increase in free energy

3. no change in free energy

4. evolution of heat

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

The bleaching properties of H₂O₂ are due to its: 

1. Reducing properties

2. Oxidising properties

3. Unstable nature

4. Acidic nature

An aqueous solution of hydrogen peroxide is:

1. alkaline

2. neutral

3. strongly acidic

4. weakly acidic

The correct statement among the following regarding perhydrol is -

1. It is 30% H₂O₂ or 100 vol. H₂O₂

2. Its molarity is 8.8 M

3. It is used as an antiseptic and a germicide

4. All of the above