${\mathrm{H}}_2{\mathrm{O}}_2$ acts as a -

1. Bleaching agent

2. Oxidising agent

3. Oxidant for a rocket fuel

4. All of the above

A compound that acts as both reducing and oxidising agent is-

1. H₂SO₄

2. H₂O₂

3. KOH

4. KMnO₄

The correct match among the following is -

For the bleaching of hair, the substance used is:

1. ${\mathrm{SO}}_2$

2. Bleaching powder

3. ${\mathrm{H}}_2{\mathrm{O}}_2$

4. ${\mathrm{O}}_3$

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

OXIDISINThe incorrect statement among the following regarding H₂O₂  is -

1. It can only act as an oxidising agent

2. It decomposes on exposure to light

3. It has to be stored in plastic or wax-lined glass bottles in dark

4. It has to be kept away from dust

A compound that has both polar and non-polar bonds is  –

1. ${\mathrm{NH}}_4\mathrm{Cl}$                                    

2. $\mathrm{HCN}$

3. ${\mathrm{H}}_2{\mathrm{O}}_2$                                     

4. ${\mathrm{CH}}_4$

H₂O₂ restores the colour of old lead paintings by:

1. Converting PbO₂ to Pb

2. Oxidising PbS to PbSO₄

3. Converting PbCO₃ to Pb

4. Oxidizing PbSO₃ to PbSO₄

${\mathrm{H}}_2{\mathrm{O}}_2$ act as a reducing agent in :

1. Reaction with a ferrous salt.

2. Reaction with iodides.

3. Reaction with lead sulphide.

4. Reaction with ${\mathrm{KMnO}}_4$ in an acid medium.

On bubbling CO₂ through a solution of barium peroxide in water:

1. O₂ is formed

2. H₂CO₃ is formed

3. H₂O₂ is formed

4. H₂ is formed