Exercise - Nitrogen, Sulphur and Metals
i. What is a key component of photochemical smog formed by the reaction of NO and NO2 with unburned hydrocarbons?
- a) Sulfuric acid
- b) Peroxyacetyl nitrate (PAN)
- c) Carbon monoxide
- d) Ozone
ii. Which of the following is the balanced equation for the production of ammonia in the Haber process?
- a) N2(g) + H2(g) = NH3(g)
- b) N2(g) + 2H2(g) = 2NH3(g)
- c) N2(g) + 3H2(g) = 2NH3(g)
- d) 2N2(g) + 3H2(g) = 2NH3(g)
iii. What are the sources of hydrogen and nitrogen in the Haber process?
- a) Water and air
- b) Methane and air
- c) Methane and water
- d) Water and methane
iv. Which catalyst is used in the Haber process?
- a) Platinum
- b) Vanadium(V) oxide
- c) Iron
- d) Nickel
v. At what temperature is the Haber process typically conducted?
- a) 300C
- b) 450C
- c) 600C
- d) 200C
vi. What is the symbol equation for the conversion of sulphur dioxide to sulphur trioxide in the Contact process?
- a) SO2(g) + O2(g) SO3(g)
- b) 2SO2(g) + O2(g) 2SO3(g)
- c) SO2(g) + 2O2(g) 2SO3(g)
- d) 2SO2(g) + O2(g) SO3(g)
vii. Which catalyst is used in the Contact process for the conversion of SO2 to SO3 ?
- a) Iron
- b) Vanadium(V) oxide
- c) Platinum
- d) Nickel
viii. What are the sources of sulphur dioxide in the Contact process?
- a) Burning sulphur or roasting sulphide ores
- b) Burning methane
- c) Electrolysis of water
- d) Combustion of natural gas