Q.20 What is the percentage of nitrogen in NH3NO3?
A) 65% C) 20%
B) 35% D) 58%
A) 65% C) 20%
B) 35% D) 58%
Q.21 The %age of nitrogen in ammonium nitrate is:
A) 46% C) 33%
B) 82% D) 13%
Q.22 Which one of the following is anhydride of sulphuric acid?
A) Sulphur (II) oxide C) Iron pyrite
B) Sulphur (VI) oxide D) Sulphur (VI) oxide
Q.23 During contact process of H2SO4 synthesis, the following reaction occurs:
2SO2(g) + O2(g) 2SO3(g) ΔH = -96 kJmol-1
Which step is used to increase the yield of SO3?
A) 46% C) 33%
B) 82% D) 13%
Q.22 Which one of the following is anhydride of sulphuric acid?
A) Sulphur (II) oxide C) Iron pyrite
B) Sulphur (VI) oxide D) Sulphur (VI) oxide
Q.23 During contact process of H2SO4 synthesis, the following reaction occurs:
2SO2(g) + O2(g) 2SO3(g) ΔH = -96 kJmol-1
Which step is used to increase the yield of SO3?
| A) Temperature is raised to very high degree | C) Both temperature and pressure are kept very low |
| B) SO3 formed is removed very quickly | D) An excess of air is used to drive the equilibrium to |
the right side
Q.24 Synthesis of ammonia by Haber’s process is a reversible reaction. What should be done to increase the yield of ammonia in the following reaction?
N2(g) + 3H2(g) 2NH3(g) ΔH = -92 kJmol-1
A) Pressure should be decreased C) Pressure should be increased
B) Ammonia should remain in reaction mixture D) Concentration of nitrogen should be decreased