Engineering Chemistry I Mock Test 7

10%

Question 1 of 10

1. The factor which determines the activity of a heterogeneous catalyst is ___________

Total surface area, number of active sites and method of preparation

Method of preparation, prior treatment only

The number of active sites per unit amount of catalyst only

Total surface area only

Question 1 of 10

Question 2 of 10

2. Select the wrong statements from the following statements with respect to a phase diagram.

Gives information about concentration

Gives information about solubility

Gives information on relative concentration

Gives information on melting and boiling points

Question 2 of 10

Question 3 of 10

3. Calculate the number of phases at the sublimation curve.

Question 3 of 10

Question 4 of 10

4. What is the number of phases and components in the following reaction?
NH₄Cl ⟶ NH₃ (Gas) + HCl (Gas)

3, 2

1, 2

3, 1

2, 1

Question 4 of 10

Question 5 of 10

5. Calculate the number of phases in an unsaturated solution of NaCl and water.

Question 5 of 10

Question 6 of 10

6. Calculate the degree of freedom for the following reaction.
NaCl (Solid) ⟶ NaCl (Liquid) + H₂0 (Gas)

Question 6 of 10

Question 7 of 10

7. Which of the following process is used for the preparation of sulphuric acid?

Ostwald’s process

Deacon’s process

Bergius process

Chamber process

Question 7 of 10

Question 8 of 10

8. What does a horizontal arrest in a cooling system refer to?

Variant reaction

Continuous cooling

Bi variant reaction

Invariant reaction

Question 8 of 10

Question 9 of 10

9. Which concentration plot is linear for a first order reaction? (A is one of the reactant)

[A]² versus time

Ln[A] versus time

√[A] versus time

[A] versus time

Question 9 of 10

Question 10 of 10

10. Liquid phase exists for all compositions above _________ region.

Sublimation region

Eutectic region

Isometric region

Equilibrium region

Question 10 of 10