Chemistry Chemical Equilibrium Test Online Mcqs Preparation

Chemistry Chemical Equilibrium Test Online Mcqs Preparation With Answers Start Below

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Question 1 of 15

1. Consider the reaction PCl5 (g) ⇌ PCl3(g) +Cl2 in a closed container at equilibrium. At a fixed temperature, what will be the effect of adding more PCl5 on the equilibrium constant?
A.
B.
C.
D.

Question 1 of 15

Question 2 of 15

2. Buffer solutions are used in except?
A.
B.
C.
D.

Question 2 of 15

Question 3 of 15

3. What will be the pH of 1.0 mol dm-3 of NH4OH, which is 1% dissociated.
A.
B.
C.
D.

Question 3 of 15

Question 4 of 15

4. pH of an aqueous solution is 3.0 at 25°C. The hydrogen ion concentration in the solution would be
A.
B.
C.
D.

Question 4 of 15

Question 5 of 15

5. If the concentration of salt is greater than the acid in buffer solution, then the
A.
B.
C.
D.

Question 5 of 15

Question 6 of 15

6. The solubility of Fe(OH)3 is x molar per dm3. Its Ksp would be:
A.
B.
C.
D.

Question 6 of 15

Question 7 of 15

7. What will be the pH of 1.0 mol dm-3 of H2X, which is only 50% disscociated?
A.
B.
C.
D.

Question 7 of 15

Question 8 of 15

8. At equilibrium, the concentration of reactants and products are
A.
B.
C.
D.

Question 8 of 15

Question 9 of 15

9. If ionic product is equal to Ksp then the solution is
A.
B.
C.
D.

Question 9 of 15

Question 10 of 15

10. An excess of silver nitrate is added to the aqueous barium chloride and the precipitate is removed by filtration. What are the main ions in the filtrate:
A.
B.
C.
D.

Question 10 of 15

Question 11 of 15

11. For the reaction H2(g) + I2(g) ⇌ 2HI(g). The equilibrium constant changes with
A.
B.
C.
D.

Question 11 of 15

Question 12 of 15

12. For what value of Kc almost forward reaction is complete.
A.
B.
C.
D.

Question 12 of 15

Question 13 of 15

13. Which one is very weak acid?
A.
B.
C.
D.

Question 13 of 15

Question 14 of 15

14. pH of 10-4 mole dm-3of HCl:
A.
B.
C.
D.

Question 14 of 15

Question 15 of 15

15. The pH of ideal buffer is:
A.
B.
C.
D.

Question 15 of 15


 

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