Engineering Chemistry II Mock Test 10

10%

Question 1 of 10

1. Identify the catalyst in the contact process.

Pentoxide

Platinised asbestos

Nitric acid

Finely divided molybdenum

Question 1 of 10

Question 2 of 10

2. What is the colloidal solution of liquid and gas called?

Emulsion

Sol

Gel

Aerosol

Question 2 of 10

Question 3 of 10

3. Which of the following is used as a catalyst for the following reaction?
2SO₂ + O₂ ⟶ 2SO₃

Chlorine

Potassium chloride

Sulphur di oxide

Nitrous oxide

Question 3 of 10

Question 4 of 10

4. Select the incorrect statement from the following option.

Lubricant act as a seal

Lubricant transmit fluid power

Lubricant keeps out dirt

Lubricant enhance corrosion

Question 4 of 10

Question 5 of 10

5. Detergents are synthetic soaps like cleansing agents and are also known as ____________

Artifacts

Syndets

Collagen

Detritus

Question 5 of 10

Question 6 of 10

6. Which of the following chemical is added in washing powder for keeping the dirt suspended in water?

Sodium perborate

Inorganic phosphate

Sodium silicate

Carboxy-methyl cellulose

Question 6 of 10

Question 7 of 10

7. Soft soaps are the limitation of hot process because of their ____________

Low solubility in water

High alkalinity

High solubility in water

Low alkalinity

Question 7 of 10

Question 8 of 10

8. Identify the catalyst in the synthesis of petrol from coal.

Chromic oxide

Ferric oxide

Pentoxide

Cupric chloride

Question 8 of 10

Question 9 of 10

9. The following reaction is an example of __________________
Sodium sulphite + oxygen ⟶ sodium sulphate

Demoivre catalysis

Heterogeneous catalysis

Mixed catalysis

Homogeneous catalysis

Question 9 of 10

Question 10 of 10

10. The % weight of detergent in washing powders is ____________

5 – 10

30 - 45

15 - 30

50 – 70

Question 10 of 10