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Major Competitive Exams

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Q. In a reaction at equilibrium, if the concentration of products is decreased, what will happen?
  • A. Shift to the right
  • B. Shift to the left
  • C. No change
  • D. Depends on the temperature
Q. In a reaction at equilibrium, if the concentration of products is increased, what will happen? (2022)
  • A. Equilibrium shifts to the left
  • B. Equilibrium shifts to the right
  • C. No change
  • D. Reaction stops
Q. In a reaction at equilibrium, if the concentration of reactants is increased, what will happen to the equilibrium position?
  • A. Shift to the right
  • B. Shift to the left
  • C. No change
  • D. Depends on the reaction
Q. In a reaction at equilibrium, if the concentration of reactants is increased, what will happen to the equilibrium?
  • A. Shift to the right
  • B. Shift to the left
  • C. No change
  • D. Equilibrium constant increases
Q. In a reaction at equilibrium, if the concentration of reactants is increased, what will happen to the position of equilibrium? (2022)
  • A. Shift to the right
  • B. Shift to the left
  • C. No change
  • D. Depends on temperature
Q. In a reaction at equilibrium, if the concentration of reactants is increased, what will happen? (2022)
  • A. The equilibrium will shift to the right.
  • B. The equilibrium will shift to the left.
  • C. The equilibrium will not change.
  • D. The reaction will stop.
Q. In a reaction at equilibrium, if the temperature is decreased, what will happen to the equilibrium position if the reaction is exothermic?
  • A. Shift to the right
  • B. Shift to the left
  • C. No change
  • D. Depends on the concentration
Q. In a reaction at equilibrium, if the temperature is increased and the reaction is exothermic, what will happen to the equilibrium position?
  • A. Shift to the right
  • B. Shift to the left
  • C. No change
  • D. Equilibrium constant increases
Q. In a reaction at equilibrium, if the temperature is increased and the reaction is exothermic, what will happen? (2021)
  • A. Shift to the right
  • B. Shift to the left
  • C. No change
  • D. Increase in Kc
Q. In a reaction at equilibrium, if the temperature is increased for an exothermic reaction, what will happen? (2022)
  • A. Shift to the right
  • B. Shift to the left
  • C. No change
  • D. Increase in pressure
Q. In a reaction at equilibrium, if the temperature is increased, what will happen to the equilibrium constant Kc for an endothermic reaction?
  • A. Increase
  • B. Decrease
  • C. No change
  • D. Depends on concentration
Q. In a reaction mechanism, the slowest step is known as the:
  • A. Rate-determining step
  • B. Intermediate step
  • C. Fast step
  • D. Catalytic step
Q. In a reaction mechanism, the slowest step is known as what?
  • A. Rate-determining step
  • B. Intermediate step
  • C. Fast step
  • D. Catalytic step
Q. In a reaction mechanism, what is the term for the slowest step that determines the overall rate of the reaction? (2019)
  • A. Intermediate
  • B. Rate-determining step
  • C. Catalyst
  • D. Transition state
Q. In a reaction where 2 moles of hydrogen react with 1 mole of oxygen, how many moles of water are produced?
  • A. 1 mole
  • B. 2 moles
  • C. 3 moles
  • D. 4 moles
Q. In a reaction where ΔH is negative and ΔS is positive, what can be said about ΔG?
  • A. ΔG is always negative.
  • B. ΔG is always positive.
  • C. ΔG is zero.
  • D. ΔG depends on temperature.
Q. In a reaction where ΔH is positive and ΔS is negative, what is the sign of ΔG at high temperatures?
  • A. Positive
  • B. Negative
  • C. Zero
  • D. Cannot be determined
Q. In a reaction, 2 moles of hydrogen gas react with 1 mole of oxygen gas to form water. How many grams of water are produced? (2020)
  • A. 18 g
  • B. 36 g
  • C. 9 g
  • D. 27 g
Q. In a reaction, 2 moles of hydrogen react with 1 mole of oxygen to form water. How many grams of water are produced? (2020)
  • A. 18 g
  • B. 36 g
  • C. 9 g
  • D. 27 g
Q. In a reaction, 3 moles of A react with 2 moles of B to produce 4 moles of C. What is the mole ratio of A to C?
  • A. 3:4
  • B. 2:3
  • C. 4:3
  • D. 1:1
Q. In a reaction, if the concentration of reactant A is halved, and the rate constant remains the same, how does the rate change for a first-order reaction? (2021)
  • A. Doubles
  • B. Halves
  • C. Remains the same
  • D. Quadruples
Q. In a reaction, if the concentration of reactant A is halved, and the rate of reaction decreases to one-fourth, what is the order of the reaction? (2020)
  • A. Zero
  • B. First
  • C. Second
  • D. Third
Q. In a reaction, if the concentration of reactants is doubled, what happens to the rate of reaction if it is first order? (2023)
  • A. Doubles
  • B. Triples
  • C. Quadruples
  • D. Remains the same
Q. In a reaction, if the concentration of reactants is doubled, what happens to the rate of reaction if the reaction is first order? (2023)
  • A. Doubles
  • B. Triples
  • C. Quadruples
  • D. Remains the same
Q. In a reaction, if the enthalpy change (ΔH) is -100 kJ and the entropy change (ΔS) is 200 J/K, what is the Gibbs free energy change (ΔG) at 298 K?
  • A. -100 kJ
  • B. -50 kJ
  • C. 0 kJ
  • D. 50 kJ
Q. In a reaction, if the rate constant doubles when the temperature increases by 10°C, what is the activation energy (Ea) approximately?
  • A. 20 kJ/mol
  • B. 40 kJ/mol
  • C. 60 kJ/mol
  • D. 80 kJ/mol
Q. In a recent basketball tournament, a team scored an average of 80 points per game over 5 games. What is the total score of the team?
  • A. 400
  • B. 350
  • C. 450
  • D. 300
Q. In a recent basketball tournament, Team X scored an average of 80 points per game over 5 games. If they scored 100 points in one game, what was their average score in the other four games?
  • A. 70
  • B. 75
  • C. 80
  • D. 85
Q. In a recent chess tournament, each player played against every other player exactly once. If there were 10 players in total, how many games were played? (2023)
  • A. 45
  • B. 90
  • C. 100
  • D. 50
Q. In a recent chess tournament, the final match ended in a draw after 50 moves. What can be inferred about the players' skills?
  • A. One player was significantly stronger than the other.
  • B. Both players were equally matched in skill.
  • C. The match was poorly played.
  • D. The players were inexperienced.
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Major Competitive Exams MCQ & Objective Questions

Major Competitive Exams play a crucial role in shaping the academic and professional futures of students in India. These exams not only assess knowledge but also test problem-solving skills and time management. Practicing MCQs and objective questions is essential for scoring better, as they help in familiarizing students with the exam format and identifying important questions that frequently appear in tests.

What You Will Practise Here

  • Key concepts and theories related to major subjects
  • Important formulas and their applications
  • Definitions of critical terms and terminologies
  • Diagrams and illustrations to enhance understanding
  • Practice questions that mirror actual exam patterns
  • Strategies for solving objective questions efficiently
  • Time management techniques for competitive exams

Exam Relevance

The topics covered under Major Competitive Exams are integral to various examinations such as CBSE, State Boards, NEET, and JEE. Students can expect to encounter a mix of conceptual and application-based questions that require a solid understanding of the subjects. Common question patterns include multiple-choice questions that test both knowledge and analytical skills, making it essential to be well-prepared with practice MCQs.

Common Mistakes Students Make

  • Rushing through questions without reading them carefully
  • Overlooking the negative marking scheme in MCQs
  • Confusing similar concepts or terms
  • Neglecting to review previous years’ question papers
  • Failing to manage time effectively during the exam

FAQs

Question: How can I improve my performance in Major Competitive Exams?
Answer: Regular practice of MCQs and understanding key concepts will significantly enhance your performance.

Question: What types of questions should I focus on for these exams?
Answer: Concentrate on important Major Competitive Exams questions that frequently appear in past papers and mock tests.

Question: Are there specific strategies for tackling objective questions?
Answer: Yes, practicing under timed conditions and reviewing mistakes can help develop effective strategies.

Start your journey towards success by solving practice MCQs today! Test your understanding and build confidence for your upcoming exams. Remember, consistent practice is the key to mastering Major Competitive Exams!

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