Chemical Equilibrium is a cornerstone chapter in Class 11 Chemistry, serving as a bridge between basic stoichiometry and advanced thermodynamics. For the CBSE 2024-25 exams, this chapter holds significant weightage as it introduces students to the dynamic nature of chemical reactions, the quantitative measurement of equilibrium constants, and the predictable shifts in systems under stress. Understanding how reactions achieve a state of balance is not only vital for scoring well in theory papers but also essential for competitive exams like JEE and NEET.
This quiz is meticulously designed to align with the latest NCERT curriculum, focusing on both physical and chemical equilibrium. It covers critical concepts such as the Law of Mass Action, Le Chatelier’s Principle, and the intricacies of ionic equilibrium including pH calculations and solubility products. By practicing these 30 high-quality MCQs, students will strengthen their conceptual clarity and improve their problem-solving speed for the upcoming academic session.
40
Minutes
30
Questions
1 / -0
Marking
Q1. For the reversible reaction , the relationship between and is:
Q2. In which of the following reactions does the equilibrium remain unaffected by a change in pressure?
Q3. According to Le Chatelier’s principle, adding heat to an exothermic reaction in equilibrium will:
Shift the equilibrium to the right
Shift the equilibrium to the left
Have no effect on the equilibrium
Increase the value of
Q4. What is the unit of for the reaction: ?
Unitless
Q5. The pH of a solution is:
8
7
Between 6 and 7
Between 7 and 8
Q6. Which of the following is a Lewis acid?
Q7. If the solubility product of is , its solubility in water is:
Q8. A buffer solution can be prepared by mixing:
Strong acid and its salt with strong base
Weak acid and its salt with strong base
Strong base and its salt with strong acid
Pure water and any salt
Q9. If the equilibrium constant for is , what is the equilibrium constant for ?
Q10. The conjugate base of is:
Q11. At , the of any aqueous solution is always:
0
7
14
Dependent on concentration
Q12. If for a reaction, the reaction will:
Proceed in the forward direction
Proceed in the backward direction
Be at equilibrium
Stop immediately
Q13. Which factor will change the value of the equilibrium constant ?
Change in pressure
Change in concentration
Presence of a catalyst
Change in temperature
Q14. For the reaction , if the volume of the container is doubled, the equilibrium constant will:
Double
Halve
Remain unchanged
Quadruple
Q15. The degree of dissociation of a weak electrolyte increases with:
Increase in concentration
Decrease in temperature
Dilution
Addition of a common ion
...and 15 more challenging questions available in the interactive simulator.