Chemical Bonding

Chemical Equilibrium MCQs with Answers

Welcome to the Chemical Equilibrium MCQs with Answers. In this post, we have shared Chemical Equilibrium Online Test for different competitive exams. Find practice Chemical Equilibrium Practice Questions with answers in Chemistry Tests exams here. Each question offers a chance to enhance your knowledge regarding Chemical Equilibrium.

Chemical Equilibrium Online Quiz

By presenting 3 options to choose from, Chemical Equilibrium Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences.Β You will have to read all the given answers of Chemical Equilibrium Questions and AnswersΒ and click over the correct answer.

  • Test Name:Β Chemical Equilibrium MCQ Quiz Practice
  • Type: Quiz Test
  • Total Questions: 40
  • Total Marks:Β 40
  • Time: 40 minutes

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure High Marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quizzes. simply click on question and comment below that question. so that we can update the answer in the quiz section.

Chemical Equilibrium MCQs

Chemical Equilibrium

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1 / 40

Which statement about Le Chatelier's principle is true?

2 / 40

An increase in temperature will shift the equilibrium _______ for an exothermic reaction.

3 / 40

What happens to the equilibrium constant (𝐾𝑐Kc​) for a reaction when the temperature is increased?

4 / 40

Which of the following would increase the equilibrium constant (𝐾𝑐Kc​) for a reaction?

5 / 40

In the equation: 2𝐻2(𝑔)+𝑂2(𝑔)β‡Œ2𝐻2𝑂(𝑔)2H2​(g)+O2​(g)β‡Œ2H2​O(g), if the pressure of 𝐻2H2​ is increased, the equilibrium will shift _______.

6 / 40

Which statement about equilibrium constants is incorrect?

7 / 40

Which of the following factors affects only the rate of reaction and not the position of equilibrium?

8 / 40

If a reaction is at equilibrium and then the concentration of a reactant is increased, the equilibrium will shift _______ to counteract the change.

9 / 40

A catalyst affects the rate of reaction but does not affect the _______ of the reaction.

10 / 40

Which statement about equilibrium constants is true?

11 / 40

Which factor does not affect the equilibrium constant (𝐾𝑐Kc​)?

12 / 40

A decrease in temperature will shift the equilibrium _______ for an exothermic reaction.

13 / 40

In a __________ reaction, the rate of the forward reaction equals the rate of the reverse reaction.

14 / 40

Which factor does not affect the position of equilibrium?

15 / 40

Which of the following factors does not affect the equilibrium constant (𝐾𝑐Kc​)?

16 / 40

The equilibrium constant (𝐾𝑐Kc​) for the reaction: 𝐴+π΅β‡ŒπΆ+𝐷A+Bβ‡ŒC+D is 25. What does this indicate about the reaction at equilibrium?

17 / 40

What happens to the equilibrium constant (𝐾𝑐Kc​) for a reaction when the reaction is reversed?

18 / 40

The equilibrium constant expression for the reaction: π‘Žπ΄+π‘π΅β‡Œπ‘πΆ+𝑑𝐷aA+bBβ‡ŒcC+dD is: 𝐾𝑐=[𝐢]𝑐[𝐷]𝑑[𝐴]π‘Ž[𝐡]𝑏Kc​=[A]a[B]b[C]c[D]d​. What does [A] represent?

19 / 40

For the reaction: 2𝑆𝑂2(𝑔)+𝑂2(𝑔)β‡Œ2𝑆𝑂3(𝑔)2SO2​(g)+O2​(g)β‡Œ2SO3​(g), if the concentration of 𝑆𝑂3SO3​ is decreased, the equilibrium will shift _______.

20 / 40

Which of the following statements is true for an endothermic reaction at equilibrium?

21 / 40

If the concentration of a reactant is decreased at equilibrium, the equilibrium will shift _______ to counteract the change.

22 / 40

The equilibrium constant expression does not include _______.

23 / 40

Which statement about the equilibrium constant (𝐾𝑐Kc​) is correct?

24 / 40

What is the effect of increasing the pressure on a gaseous reaction mixture at equilibrium?

25 / 40

What effect does adding an inert gas to a reaction mixture at constant volume have on the equilibrium?

26 / 40

In the equation: 𝑁2(𝑔)+3𝐻2(𝑔)β‡Œ2𝑁𝐻3(𝑔)N2​(g)+3H2​(g)β‡Œ2NH3​(g), if the concentration of 𝑁2N2​ is increased, the equilibrium will shift _______.

27 / 40

In a reaction at equilibrium, the rate of the forward reaction is _______ the rate of the reverse reaction.

28 / 40

In a reaction mixture at equilibrium, if the volume is increased, the pressure will _______.

29 / 40

Which statement about Le Chatelier's principle is incorrect?

30 / 40

In a reaction mixture at equilibrium, if the pressure is increased, the volume will _______.

31 / 40

Which factor does not affect the position of equilibrium?

32 / 40

At equilibrium, the rate of the forward reaction is _______ the rate of the reverse reaction.

33 / 40

Which of the following statements is true regarding the equilibrium constant expression?

34 / 40

Which statement about the equilibrium constant (𝐾𝑐Kc​) is incorrect?

35 / 40

For the reaction: 2𝑁𝑂2(𝑔)β‡Œπ‘2𝑂4(𝑔)2NO2​(g)β‡ŒN2​O4​(g), if the concentration of 𝑁2𝑂4N2​O4​ is increased, the equilibrium will shift _______.

36 / 40

If the volume of a gaseous reaction mixture is decreased, what happens to the pressure?

37 / 40

The equilibrium constant (𝐾𝑐Kc​) for a reaction at a certain temperature is 1.5. What does this indicate about the reaction?

38 / 40

If the concentration of a product is increased at equilibrium, the equilibrium will shift _______ to counteract the change.

39 / 40

What is the effect of adding a catalyst to a reaction mixture at equilibrium?

40 / 40

The equilibrium constant (𝐾𝑐Kc​) for the reverse reaction is the _______ of the equilibrium constant for the forward reaction.

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