Q.15 The pH of acid rain is
A) 72NH3(g) C) 2N(g) + 3H2(g) 2NH3(g)
B) Between 5 and 7 D) Between 7 and 14
Q.16 Which one of the following products is obtained when sulphur trioxide is absorbed in
concentrated sulphuric acid?
A) Oleum C) Hydrogen sulphide
B) Aqua Regia D) Sulphate ion
B) Between 5 and 7 D) Between 7 and 14
Q.16 Which one of the following products is obtained when sulphur trioxide is absorbed in
concentrated sulphuric acid?
A) Oleum C) Hydrogen sulphide
B) Aqua Regia D) Sulphate ion
Q.17 About 80% of ammonia is used for the production of
A) Explosives C) Nylon
B) Fertilizers D) Polymers
Q.18 Urea is the most widely used nitrogen fertilizer in Pakistan. Its composition Is
A) NH2CO C) N2H4CO2
B) N2H5CO2 D) N2H4CO
Q.19 During the manufacture of nitric acid, nitric oxide is oxidized to nitrogen dioxide. This reaction is given as:
A) Explosives C) Nylon
B) Fertilizers D) Polymers
Q.18 Urea is the most widely used nitrogen fertilizer in Pakistan. Its composition Is
A) NH2CO C) N2H4CO2
B) N2H5CO2 D) N2H4CO
Q.19 During the manufacture of nitric acid, nitric oxide is oxidized to nitrogen dioxide. This reaction is given as:
2NO(g) + O2(g) ⇌ 2NO2(g) ∆H = ―114 kJ/mol
According to Le Chatelier’s Principle
A) Reaction must not be temperature dependent C) Reaction must be carried out at low temperature
B) Reaction must be carried out at room temperature D) Reaction must be carried out at high temperature
According to Le Chatelier’s Principle
A) Reaction must not be temperature dependent C) Reaction must be carried out at low temperature
B) Reaction must be carried out at room temperature D) Reaction must be carried out at high temperature