Problem 1
Hydrogen will not reduce: (a) Heated cupric oxide (b) Heated ferric oxide (c) Heated stannic oxide (d) Heated aluminium oxide
Problem 2
Tritium is a radioactive isotope of hydrogen. It emits: (a) \(\alpha\) -particles (b) \(\beta\) -particles (c) \(\gamma\) -rays (d) Neutrons
Problem 3
Hydrogen can be prepared by: (a) Electrolysis of pure water (b) Kolbe's electrolysis (c) Lane's Process (d) All of these
Problem 4
Which of the following is reduced by hydrogen peroxide in acid medium? (a) \(\mathrm{FeSO}_{4}\) (b) Potassium iodide (c) Potassium ferrocyanide (d) Potassium permanganate
Problem 5
A metal which does not liberate \(\mathrm{H}_{2}\) (g) from acids is: (a) \(\mathrm{Fe}\) (b) \(\mathrm{Zn}\) (c) \(\mathrm{Mn}\) (d) \(\mathrm{Ag}\)
Problem 6
Para and ortho hydrogen differ in: (a) Atomic mass (b) Atomic number (c) Number of neutrons (d) Spins of protons
Problem 8
Heavy water is obtained by: (a) Prolonged electrolysis of \(\mathrm{H}_{2} \mathrm{O}\) (b) Heating \(\mathrm{H}_{2} \mathrm{O}\) (c) Boiling water (d) Fractional distillation of \(\mathrm{H}_{2} \mathrm{O}\)
Problem 9
A hydride of nitrogen which is acidic is: (a) \(\mathrm{NH}_{3}\) (b) \(\mathrm{N}_{3} \mathrm{H}\) (c) \(\mathrm{N}_{2} \mathrm{H}_{2}\) (d) \(\mathrm{N}_{2} \mathrm{H}_{4}\)
Problem 10
Which one of the following compounds undergoes hydrolysis during distillation to yield hydrogen peroxide? (a) \(\mathrm{HNO}_{3}\) (b) \(\mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{7}\) (c) \(\mathrm{H}_{2} \mathrm{~S}_{2} \mathrm{O}_{8}\) (d) \(\mathrm{H}_{2} \mathrm{~S}_{2} \mathrm{O}_{6}\)
Problem 11
Which of the following is a true peroxide? (a) \(\mathrm{SO}_{2}\) (b) \(\mathrm{BaO}_{2}\) (c) \(\mathrm{NO}_{2}\) (d) \(\mathrm{MnO}_{2}\)
