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 -
(a) CO(g)+H2(g) | (i) Mg(HCO3)2+Ca(HCO3)2 |
(b) Temporary hardness of water | (ii) An electron deficient hydride |
(c) B2H6 | (iii) Synthesis gas |
(d) H2O2 | (iv) Non-planar structure |
(a) | (b) | (c) | (d) | |
1. | (iii) | (ii) | (i) | (iv) |
2. | (iii) | (iv) | (ii) | (i) |
3. | (i) | (iii) | (ii) | (iv) |
4. | (iii) | (i) | (ii) | (iv) |
For the bleaching of hair, the substance used is:
1.
2. Bleaching powder
3.
4.
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.
2.
3.
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
act as a reducing agent in :
1. Reaction with a ferrous salt.
2. Reaction with iodides.
3. Reaction with lead sulphide.
4. Reaction with 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