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Chemical Equilibrium Questions

Practice 34 Chemical Equilibrium questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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5
Easy
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18
Medium
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11
Hard
Practice by Exam:Chemistry(33)General Awareness(1)

About Chemical Equilibrium — practice questions, PYQs & concepts

Chemical Equilibrium is a frequently-tested topic on Chemistry, General Awareness. ExamTest.live currently lists 34 Chemical Equilibrium questions spanning previous-year papers from 2026 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year — every answer key is free, no sign-up required.

Chemical Equilibrium weight in competitive exams

Across our Chemical Equilibrium question bank, the largest sources are Chemistry (33) and General Awareness (1). Click any exam chip above to drill down to that exam-specific question set.

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All Chemical Equilibrium Questions(1–34 of 34)

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Q1mediummcqGeneral AwarenessCompetitive Exam2026
0% accuracy
Which of the following statements best describes Le Chatelier's principle?
Q2hardmcqChemistryAIEEE2026
0% accuracy
Solid is placed in a flask containing at . It decomposes into and . At equilibrium, total pressure is . is:
Q3hardmcqChemistryNEET (UG) 20172026
0% accuracy
The equilibrium constants of the following are: The equilibrium constant () of the reaction: will be:
Q4mediummcqChemistryAIEEE 20062026
0% accuracy
The equilibrium constant for the reaction is . The value of for the reaction will be:
Q5mediummcqChemistryAIEEE 20062026
0% accuracy
Phosphorus pentachloride dissociates as follows, in a closed reaction vessel, . If total pressure at equilibrium of the reaction mixture is and degree of dissociation of is , the partial pressure of will be:
Q6hardmcqChemistryNEET (UG) 20172026
0% accuracy
A litre container at contains at pressure and an excess of (neglect the volume of solid ). The volume of the container is now decreased by moving the movable piston fitted in the container. The maximum volume of the container, when pressure of attains its maximum value, will be:(Given that: , )
Q7easymcqChemistryAIEEE 20122026
The equilibrium constant () for the reaction at temperature is . The value of for the reaction, at the same temperature is:
Q8mediummcqChemistryAIEEE 20122026
The incorrect expression among the following is:
Q9mediummcqChemistryFIITJEE AIEEE 2011 (Set Q)2026
A vessel at contains with a pressure of . Some of the is converted into on the addition of graphite. If the total pressure at equilibrium is , the value of is:
Q10mediummcqChemistryAIEEE2026
For the following three reactions, equilibrium constants are given:(a) (b) (c) Which of the following relations is correct?
Q11mediummcqChemistryAIEEE2026
The equilibrium constants and for the reactions and , respectively, are in the ratio of . If the degree of dissociation of and be equal, then the ratio of total pressure at these equilibria is:
Q12easymcqChemistryNEET (UG) 20242026
In which of the following equilibria are and NOT equal?
Q13mediummcqChemistryNEET (UG) 20242026
For the reaction , . At a given time, . Which of the following is correct?
Q14hardmcqChemistryNEET 20232026
The equilibrium concentrations of the species in the reaction are and , respectively at . for the reaction is ():
Q15hardmcqChemistryNEET 20172026
A litre container at contains at pressure and an excess of (neglect the volume of solid ). The volume of the container is now decreased by moving a piston. The maximum volume of the container, when pressure of attains its maximum value, will be [Given: , ]:
Q16hardmcqChemistryNEET 20172026
The equilibrium constants of the following are: () () ()The equilibrium constant () of the reaction: will be:
Q17mediummcqChemistryNEET 20222026
. For the above reaction at , is found to be . If the concentration of at equilibrium is then concentration of in is:
Q18hardmcqChemistryNEET 2020 E12026
Hydrolysis of sucrose is given by the following reaction:

If the equilibrium constant () is at , the value of at the same temperature will be:
Q19easymcqChemistryNEET (UG) 20182026
Which one of the following conditions will favour maximum formation of the product in the reaction:?
Q20hardmcqChemistryChemistry
6% accuracy
For the reaction , the backward reaction rate constant is higher than the forward reaction rate constant by a factor of , at .[Given : ] for the reaction at is:
Q21mediummcqChemistryChemistry
0% accuracy
Phosphoric acid ionizes in three steps with their ionization constant values , and , respectively, while is the overall ionization constant. Which of the following statements are true?A. B. is a stronger acid than and C. D. Choose the correct answer from the options given below:
Q22mediummcqChemistryChemistry
0% accuracy
For the reaction , the equilibrium constant is . The equilibrium constant is for the reaction . What is for the reaction ?
Q23mediummcqChemistryChemistry
The value of equilibrium constant of the reaction is . The equilibrium constant of the reaction will be:
Q24mediummcqChemistryChemistry
Consider the following liquid – vapour equilibrium: . Which of the following relations is correct?
Q25mediummcqChemistryChemistry
If the equilibrium constant for is , the equilibrium constant for will be:
Q26mediummcqChemistryChemistry
Given the reaction between gases represented by and to give the compound . At equilibrium, the concentration of: If the reaction takes place in a sealed vessel at , then the value of for the reaction will be:
Q27mediummcqChemistryChemistry
The following equilibrium constants are given:
image
Q28hardmcqChemistryChemistry
For the chemical equilibrium, , can be determined from which one of the following plots?
Q29hardmcqChemistryChemistry
For reaction, , at is . The value of is nearly:
Q30mediummcqChemistryChemistry
Given that the equilibrium constant for the reaction has a value of at a particular temperature. What is the value of the equilibrium constant for the following reaction at the same temperature:
Q31easymcqChemistryChemistry
In which of the following equilibrium and are not equal?
Q32mediummcqChemistryChemistry
The dissociation equilibrium of a gas is . The expression relating degree of dissociation () with and total pressure is:
Q33easymcqChemistryChemistry
If the concentration of ions in the reaction is decreased by times, then equilibrium concentration of will increase by:
Q34hardmcqChemistryChemistry
For the reactions and , the equilibrium constants are and in the ratio . If degree of dissociation is equal, the ratio of total pressures is:

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