Punjab 11th Class Chemistry Chapter 8 Chemical Equilibrium Mcqs Test Online

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Question 1 of 8

Chemistry

1. NaCl can be purified by passing HCl gas through the ___________ solution of NaCl.

Hot

Dilute

Cold

Concentrated

Question 1 of 8

Question 2 of 8

2. Kc = Kp when An is equal to

-1

-2

+1

Zero

Question 2 of 8

Question 3 of 8

3. For which of the following reactions, Kc has units of concentration.

A(g) ⇌ 2B(g)

3A(g) ⇌ 2B(g)

2A(g) ⇌ B(g)

A(g) ⇌ B(g)

Question 3 of 8

Question 4 of 8

4. If K₁ = [M⁺²]³[X³]², the chemical formula of compound is

MX₂

M₃X₂

M₂X₃

MX

Question 4 of 8

Question 5 of 8

5. Consider the following reaction:
2SO₂(g) + O₂(g) ⇌ 250₃(g) ∆H° -198KJ
Yield of sulphur trixoxide can be increased by
Increasing pressure
Increasing temperature
Adding catalyst
Increasing concentration of oxygen

a, b, c, d

a, b, c

a,b

a, d

Question 5 of 8

Question 6 of 8

6. Kc is independent of

Kp

Both temperature and pressure

Temperature

Pressure

Question 6 of 8

Question 7 of 8

7. For the following reaction 2A(g) + B(g) ⇌ 3C(g) We can write

Kp – Kc = 0

Kc

Kc>Kp

Kp – Kc = -1

Question 7 of 8

Question 8 of 8

8. When a catalyst is added to an equilibrium mixture, it decreases

Reverse reaction

It has not effect

Concentrations of reaction mixture

Forward reaction

Question 8 of 8

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