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Class 10 Chemistry Chapter 9: Chemical Equilibrium MCQs With Explanations

Practice Class 10 Chemistry Chapter 9: Chemical Equilibrium MCQs with explanations for Pakistani board exams. Includes solved objective questions, answer checking, chapter revision guidance and next chapter suggestions.

MCQs / Class 10 / Chemistry / Chapter 9: Chemical Equilibrium
10 MCQs

Chapter 9: Chemical Equilibrium Objective Preparation

Use this page for direct chapter practice, answer checking and explanation review. It is available through the clean URL shown in the browser, so students can bookmark and share this exact chapter.

10Total MCQs
10With explanations
8Topics represented

Topics found: Reversible Reactions, Equilibrium Constant, Equilibrium Expression, Reaction Quotient, Elements, Chemical Reactions, Catalysts, Chemical Equilibrium

Chemical Equilibrium MCQs With Explanations

Q1. The characteristics of reversible reaction are many, except one of the given:
Reversible reactions by definition involve both forward and reverse reactions, so products do recombine — making A the false statement.
Q2. When the magnitude of Kc is very small it indicates:
A very small Kc indicates the equilibrium mixture is dominated by reactants, meaning product concentrations are negligible.
Q3. For reaction between PCl₃ and Cl₂ to form PCl₅, the units of Kc are:
The reaction PCl₃ + Cl₂ ⇌ PCl₅ has Kc = [PCl₅]/([PCl₃][Cl₂]), so units are (mol dm⁻³) / ((mol dm⁻³)(mol dm⁻³)) = mol⁻¹ dm³.
Q4. The equilibrium constant expression for the reaction is: 2SO₂ + O₂ ⇌ 2SO₃
The equilibrium expression uses concentrations raised to their stoichiometric coefficients, excluding coefficients from the expression.
Q5. If Qc > Kc, the reaction will proceed in which Direction?
When Qc > Kc, the system has excess products, so the reaction shifts backward to re-establish equilibrium.
Q6. The value of Kc depends on:
The equilibrium constant Kc is temperature-dependent as it relates to the thermodynamics of the reaction.
Q7. The colour of iodine vapours is:
Iodine vapor exhibits a distinct purple color due to its molecular absorption spectrum.
Q8. In a Chemical reaction, the substances that Combine are called?
Reactants are the starting substances that undergo chemical change in a reaction.
Q9. Which of following catalyst is used for this reaction: 2H₂(g) + O₂(g) → 2H₂O(L)
Platinum (Pt) is a well-known catalyst for the combustion of hydrogen with oxygen to form water.
Q10. For a reaction between H₂ and I₂ to form HI, the units of Kc are.
For the reaction H₂ + I₂ ⇌ 2HI, the number of moles of reactants and products are equal, making Kc dimensionless.

After Chapter 9: Chemical Equilibrium, Practice Next Chapters

Once you finish these MCQs, continue with the next available chapters from Chemistry so your revision stays chapter-wise and complete.

Chapter 9: Chemical Equilibrium Revision Guide

Complete the MCQs first, then review every incorrect answer against the textbook heading where that concept appears. For biology and other science subjects, pay attention to terminology, diagrams, sequence of processes, examples and differences between similar structures or functions.

This chapter page keeps the exact class, subject, chapter, question count, answer checking, explanations and follow-up chapters together, so students can revise from one focused URL instead of searching through the full book again.

Class 10 Chemistry MCQ Preparation: Chemical Equilibrium

This page supports Matric Part 2 practice in Chemistry. At this stage, the main purpose is strengthening final-year matric concepts and preparing for cumulative school and board assessments. The questions available here should be used with the current textbook and the instructions issued by the learner's school or examination board.

What Chemistry MCQs can test

In Chemistry, objective questions commonly draw on chemical symbols, atomic structure, periodic trends, bonding, equations, reaction conditions, laboratory observations and calculations. A useful answer is based on the exact wording and concept, not simply on recognising a familiar option. For this subject, learners should connect each chemical fact with a particle-level explanation and check symbols, charges, valencies and equation balance carefully.

Chemical Equilibrium: focused MCQ revision

This chapter should be reviewed through its main definitions, examples, diagrams, comparisons and links with earlier Chemistry concepts.

Write a one-sentence reason for each corrected answer and note the textbook heading where the concept is explained.

Common mistakes for Class 10 learners

In this subject, frequent errors include confusing related trends, using an incorrect chemical symbol, missing a reaction condition or treating similar compounds as identical. Review textbook exceptions, diagrams, units and similar-looking statements because these often cause avoidable objective-question errors. When the page marks an answer as incorrect, the next step should be to identify the mistaken idea and verify it, rather than memorising the displayed answer letter.

A practical revision routine

Alternate chapter revision with short mixed tests so that older material remains active while new chapters are completed. Before attempting the MCQs, review definitions, equations, periodic relationships, structures, reaction conditions, examples and exceptions stated in the textbook. Complete a manageable set without notes, check the result, and divide errors into missing knowledge, misunderstood concepts and careless reading. Revise the appropriate section before repeating the chapter.

How to review Chemical Equilibrium after the quiz

List the questions you missed from Chemical Equilibrium and write the textbook heading connected with each one. Explain the correct idea in your own words, then return later and answer a fresh set. This gives the chapter page a clear purpose: finding specific weaknesses in Chemistry rather than only collecting a score.

Accuracy and responsible use

Explanations are provided where they exist in the question bank, but educational databases can contain incomplete or mistaken material. Confirm disputed answers with an authoritative textbook or teacher. Ahmad Learning Hub provides a practice resource and does not claim that a question will appear in an examination or that every available item represents an official board question.