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.
2.
3.
4.
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