This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 7 Equilibrium – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 7 Equilibrium Quiz 2 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which Hardy-Weinberg factor represents the frequency of heterozygous individuals in a population? A) P2. B) 2pq. C) Q2. D) P2 + 2pq. Show Answer Correct Answer: B) 2pq. 2. "holding all else equal, when the price of a good rises, suppliers increase their quantity supplied for that good" A) Law of supply. B) Law of demand. C) Law of equilibrium. D) Opportunity cost. Show Answer Correct Answer: A) Law of supply. 3. If TU of 10 units is 100 and TU of 15 units is 150 than calculate MU A) 10. B) 50. C) 20. D) 25. Show Answer Correct Answer: A) 10. 4. Any price where quantity demanded is not equal to the quantity supplied is known as disequilibrium. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 5. In the reaction @@ext\{N\} ..... 2(g) + 3ext\{H\} ..... 2(g) ightleftharpoons 2ext\{NH\} ..... 3(g)@@, what effect will decreasing the pressure have on the equilibrium position? A) Shift to the right, favoring the formation of ammonia. B) Shift to the left, favoring the formation of nitrogen and hydrogen. C) No effect on the equilibrium position. D) Increase the rate of the forward reaction. Show Answer Correct Answer: B) Shift to the left, favoring the formation of nitrogen and hydrogen. 6. Which of the following would be most likely to result in a reduction in the rate of a chemical reaction? A) Lowering the activation energy for a reaction. B) Warming an exothermic reaction. C) Stirring a solid and liquid reactant. D) Crushing a solid reactant. Show Answer Correct Answer: B) Warming an exothermic reaction. 7. How can the equilibrium constant be affected by changes in pressure? A) Increasing the pressure will decrease the value of K. B) Decreasing the pressure will increase the value of K. C) Changes in pressure have no effect on the value of K. D) Increasing the pressure will increase the value of K. Show Answer Correct Answer: C) Changes in pressure have no effect on the value of K. 8. What does a double arrow in the middle of a chemical reaction indicate? A) The reaction is irreversible. B) The reaction is exothermic. C) The reaction is endothermic. D) The reaction is reversible. Show Answer Correct Answer: D) The reaction is reversible. 9. 20 mL of 0.1 M H$_{2}$SO$_{4}$ solution is added to 30 mL of 0.2 M NH$_{4}$OH solution. The pH of the resultant mixture is [pK$_{b}$ of NH$_{4}$OH = 4.7] A) 9.4. B) 9.0. C) 5.0. D) 5.2. Show Answer Correct Answer: B) 9.0. 10. If AD A) Firms would decrease employment. B) Underemployed resources would be properly utilized. C) Firms will spend more on investment. D) Government would increase taxes. Show Answer Correct Answer: A) Firms would decrease employment. 11. The [IO$_{3}$$^{-}$] in a saturated solution of Ce(IO$_{3}$)$_{3}$ is 5.55 x 10$^{-3 }$M. Calculate the Ksp for Ce(IO$_{3}$)$_{3}$. A) 3.16 x 10$^{-10}$. B) 1.03 x 10$^{-5}$. C) 2.56 x 10$^{-8}$. D) 3.51 x 10$^{-11}$. Show Answer Correct Answer: A) 3.16 x 10$^{-10}$. 12. If MU is positive, TU will be A) Increasing. B) Decreasing. C) Constant. D) Undefined. Show Answer Correct Answer: A) Increasing. 13. The increase of pressure on ice water system at constant temperature will lead to A) No effect on that equilibrium. B) A decrease in the entropy of the system. C) A shift of the equilibrium in the forward direction. D) An increase in the Gibbs energy of the system. Show Answer Correct Answer: C) A shift of the equilibrium in the forward direction. 14. The concentration @ pressure of ..... and ..... are NOT included in the equilibrium constant expression, Kc and Kp. A) Solid, gas. B) Gas, aqueous. C) Gas, liquid. D) Solid, liquid. Show Answer Correct Answer: D) Solid, liquid. 15. A reaction has an equilibrium constant $K_{eq} = 0.5$ A) The concentration of products is greater than the concentration of reactants. B) The concentration of reactants is greater than the concentration of products. C) The concentrations of reactants and products are equal. D) The reaction does not reach equilibrium. Show Answer Correct Answer: B) The concentration of reactants is greater than the concentration of products. 16. In the context of punctuated equilibrium, what is meant by 'stasis'? A) Rapid evolutionary change. B) A period of little or no evolutionary change. C) The extinction of a species. D) The formation of a new species. Show Answer Correct Answer: B) A period of little or no evolutionary change. 17. When the quantity supplied exceeds the quantity demanded it is known as A) A shortage. B) A surplus. C) Equilibrium. D) A subsidy. Show Answer Correct Answer: B) A surplus. 18. Which of the following best describes dynamic equilibrium in a chemical reaction? A) The forward and reverse reactions stop. B) The concentrations of reactants and products are equal. C) The forward and reverse reactions occur at the same rate. D) The reaction has reached completion. Show Answer Correct Answer: C) The forward and reverse reactions occur at the same rate. 19. At a certain temperature, K = 1 for the reaction. At equilibrium, you can be certain that: A) [H2] = [Cl2]. B) [HCl] = 2[H2]. C) [HCl] = [H2] = [Cl2] = 1. D) [H2][Cl2]/[HCl]2 = 1. Show Answer Correct Answer: D) [H2][Cl2]/[HCl]2 = 1. 20. For the exothermic reaction @@ext\{A\} + ext\{B\} ightleftharpoons ext\{C\} + ext\{D\}@@, what is the effect of decreasing the temperature on the position of equilibrium? A) Equilibrium shifts to the right, favoring the formation of products. B) Equilibrium shifts to the left, favoring the formation of reactants. C) There is no change in the position of equilibrium. D) The reaction stops. Show Answer Correct Answer: A) Equilibrium shifts to the right, favoring the formation of products. 21. A rational consumer will be react under MUx> Px A) Stop consuming good X altogether. B) Increase consumption of good X. C) Maintain current consumption of good X. D) Decrease consumption of good X. Show Answer Correct Answer: B) Increase consumption of good X. 22. Siapa nama moderator EQUITALK 2021? A) Mutiara Diva Ramadanti. B) Mutiara Diva Aura. C) Mutiara Diva Ramadhani. D) Mutiara Diva Rahayuni. Show Answer Correct Answer: C) Mutiara Diva Ramadhani. 23. Stable equilibrium: ..... A) An object experiencing balanced forces while at a constant velocity. B) An object at rest experiencing balanced forces. C) None. D) An object experiencing balanced forces while at a change velocity. Show Answer Correct Answer: B) An object at rest experiencing balanced forces. 24. One clue of a chemical change is the formation of a precipitate. A precipitate is formed when A) Two liquids react and a gas is produced. B) A solid dissolves in a liquid. C) One liquid dissolves in another. D) Two liquids react and a solid is formed. Show Answer Correct Answer: D) Two liquids react and a solid is formed. 25. According to Bronsted-Lowry concept, base is a substance which is A) An electron pair donor. B) An electron pair acceptor. C) A proton donor. D) A proton acceptor. Show Answer Correct Answer: D) A proton acceptor. ← PreviousNext →Related QuizzesClass 11 Chemistry (Part I) Chapter 7 Equilibrium Quiz 1Class 11 Chemistry (Part I) Chapter 7 Equilibrium Quiz 3Class 11 Chemistry (Part I) Chapter 7 Equilibrium Quiz 4Class 11 Chemistry (Part I) Chapter 7 Equilibrium Quiz 5Class 11 Chemistry (Part I) Chapter 7 Equilibrium Quiz 6Class 11 Chemistry (Part I) Chapter 7 Equilibrium Quiz 7Class 11 Chemistry (Part I) Chapter 7 Equilibrium Quiz 8Class 11 Chemistry (Part I) Chapter 7 Equilibrium Quiz 9Class 11 Chemistry (Part I) Chapter 7 Equilibrium Quiz 10Class 11 Chemistry (Part I) Chapter 7 Equilibrium Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books