1st Year Chemistry Chapter 11 Test11. Nitrogen and Sulphur

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. In a catalytic converter, NO reacts with CO to form:
   1. CO₂ + H₂O
   2. N₂ + CO₂
   3. NH₃ + CO
   4. NO₂ + C
2. Sulphuric acid acts as a dehydrating agent because it:
   1. Contains water
   2. Removes water from compounds
   3. Forms crystals easily
   4. Produces oxygen
3. The bacteria responsible for nitrification are:
   1. Clostridium
   2. Azotobacter
   3. Pseudomonas
   4. Nitrosomonas
4. Nitric acid is formed naturally when:
   1. Nitrogen combines with hydrogen
   2. Nitrogen dioxide dissolves in water
   3. Ammonia burns in air
   4. Ammonia reacts with HCl
5. Sulphur dioxide is an important food preservative. Which leinte property makes sulphur dioxide useful in this role?
   1. It is a gas
   2. It is a reducing agent
   3. It reacts with oxygen to form sulphur trioxide
   4. It reacts with water to form an acidic solution
6. Nitrogen is absorbed by the plants in the form of :
   1. Ammonium
   2. Nitrites
   3. Nitrates
   4. All
7. The industrial manufacture of sulphuric acid is known as:
   1. Haber process
   2. Contact process
   3. Ostwald process
   4. Deacon process
8. Sulphur can act as:
   1. Only oxidizing agent
   2. Only reducing agent
   3. Both oxidizing and reducing agent
   4. None
9. PAN acts as a:
   1. Fertilizer
   2. Catalyst
   3. Respiratory irritant
   4. Coolant
10. The catalyst used in the Haber process is:
    1. Nickel
    2. Iron
    3. Platinum
    4. Copper