The reaction of aqueous KMnO4 with H2O2 in acidic condition gives:
1.
2.
3.
4.
The method used to remove the temporary hardness of water is-
1. Synthetic resins method
2. Calgon's method
3. Clark's method
4. Ion-exchange method
The incorrect statement among the following regarding reaction of is -
1. (acidic medium)
2.
3. (acidic medium)
4.
is stored in:
1. Iron container after the addition of stabilizer
2. Glass container after the addition of stabilizer
3. Plastic container after the addition of stabilizer
4. None of the above
The role of when added to a solution containing is of-
1. An oxidizing agent
2. A reducing agent
3. Both as an oxidizing as well as a reducing agent
4. None of the above
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.
The correct statement among the following regarding H2O2 is-
1. Two hydrogen atoms are connected to one oxygen atom.
2. All the four atoms are in the same plane.
3. The four atoms are arranged in a non-linear and non-planar manner.
4. O-H bonds are polar but the molecule is non-polar.
The oxidising nature of is shown in the reaction-
1.
2.
3.
4.
For the bleaching of hair, the substance used is:
1.
2. Bleaching powder
3.
4.
Decolourisation of acidified potassium permanganate by is due to:
1. Oxidation of
2. Reduction of
3. Both oxidation and reduction of
4. None of the above.