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.
on treatment with chlorine gives:
(1)
(2) oxygen
(3) HOCl
(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.
(1) neutral solution
(2) acidic solution
(3) alkaline solution
(4) non-polar medium
Tellurium hydride on dissolution in water gives:
(1)
(2)
(3)
(4) None of these
Covalent hydride among the following is -
1.
2.
3.
4.
The conversion of atomic hydrogen into ordinary hydrogen is:
1. exothermic change
2. endothermic change
3. nuclear change
4. photochemical change
Nascent hydrogen consists of :
(1) hydrogen atoms with excess energy
(2) hydrogen molecules with excess energy
(3) hydrogen ions in an excited state
(4) solvated protons