Chemical Equilibrium Test Online MCQs Question Answer
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Chemical Equilibrium Test Online MCQs

Test Name Chemical Equilibrium MCQs Test
Subject Chemistry
Test Type MCQs
Total Question 20
Total Marks 40
Total Time 20 Mints
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Chemical Equilibrium MCQs Test Online solve questions answers for the preparation of written tests for the admission and recruitment tests of the related topic. Visitor attempt all the multiple choice questions to check your knowledge and also improve your information. Get Chemical Equilibrium MCQs Test Online below.

Chemical Equilibrium Test Online MCQs


1. The decomposition of N₂O₄ to NO₂ is carried at 280 k in chloroform. When the equilibrium has been established, 0.2mole of N₂O₄ 2x10-³ mole of NO₂ are present in a two-litre solution. The equilibrium constant for the reaction N₂O₄ ⇌ 2NO₂ is:

Question 1 of 20

2. For an equilibrium reaction, the rate constant for the forward reaction is 2.38x10-⁴. The equilibrium constant for the reaction is:

Question 2 of 20

3. For the reaction, 2Hl ⇌ H₂ + I₂, the equilibrium constant K at 490 ͦC is0.022. The equilibrium constant of the reverse reaction will be:

Question 3 of 20

4. Given the reaction:
2A (gas) + B(gas) ⇌ C (gas) = 100 kJ Which combination of pressure and temperature would give the highest yield of C at equilibrium?

Question 4 of 20

5. One mole of A and one of mole B are mixed in a vessel to produce C and (d). At the equilibrium, 0.2 mole of B are left unreacted. The value of the equilibrium constant for the reaction will be:

Question 5 of 20

6. Which of the following is the correct statement for the manufacture of ammonia by Haber’s process?

Question 6 of 20

7. The decomposition of PCl₅ at 323 K proceeds as PCl₅ (s) ⇌ PCl₃  (g) + Cl₂(g). If the degree is dissociation of PCl₅ be α and the equilibrium pressure be P, then the partial pressure due to chlorine will be:

Question 7 of 20

8. According to Law of Mass action, the rate of reaction is directly proportional to:

Question 8 of 20

9. A cylinder provided with a piston has some PCl₅ in equilibrium with and Cl₂ formed by the dissociation of PCl₅. If the system is compressed, then indicate the correct statement:

Question 9 of 20

10. . In the equilibrium,
H₃PO₄ + H₂O ⇌ H₂PO-₄ + H₂O⁺
The equilibrium constant is most likely to be changed by:

Question 10 of 20

11. 0.2 mole of an inert gas were added to the system 2Hl(g) ⇌ H₂(g) + I₂(g) at equilibrium. The dissociation of HI will:

Question 11 of 20

12. In the reaction PCl₅ (g) ⇌ PCl₃ (g) + Cl₂(g) at 760K, 4.0 moles of PCl₅ are taken in a 2-liter flask to
contain 0.80 mole of Cl₂. The value of equilibrium constant will be:

Question 12 of 20

13. The equilibrium constant for the reaction, N₂(g) + 3H₂(g) ⇌ 2NH₃(g) is K. The value of the constant for the reaction NH₃(g) ⇌ ½ N₂(g) + 2/3H₂(g) will be:

Question 13 of 20

14. When pressure is applied to the equilibrium system. Ice(s) ⇌ H₂O(l), which of the following will happen?

Question 14 of 20

15. An increase in reaction velocity is due to:

Question 15 of 20

16. At constant pressure, upon the addition of helium at the equilibrium point in the reaction, PCl₅ (g) ⇌ PCl₃(g) + Cl₂(g), the degree of dissociation of:

Question 16 of 20

17. When pressure is applied to equilibrium system of ice ⇌ water, which of the following phenomenon will occur?

Question 17 of 20

18. For the reversible reaction:
N₂(g) + 3H₂ (g) ⇌ 2NH₃ (g) ΔH is -93.7 kJ. The equilibrium will shift in the forward direction, if conc. Of

Question 18 of 20

19. One gm mole of CH₃COOH were made to react with one gm mole of C₂H₅OH till the equilibrium was established. The equilibrium mixture was found to contain 0.333 gm mole of unused acid. The equilibrium constant for the reaction is:

Question 19 of 20

20. A relatively fast reaction is characterized by a:

Question 20 of 20


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