This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 7 Equilibrium – Quiz 27 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 7 Equilibrium Quiz 27 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. For the reaction ..... N$_{2 (g) }$+ 3 H$_{2}$ $_{(g)}$ <$\rightarrow$ 2 NH$_{3 (g)}$If the pressure in the system is increased, ..... reaction will be favored. A) The forward. B) The reverse. C) Neither. D) None of the above. Show Answer Correct Answer: A) The forward. 2. Which scientist is most closely associated with the development of the punctuated equilibrium theory? A) Charles Darwin. B) Stephen Jay Gould. C) Gregor Mendel. D) Alfred Russel Wallace. Show Answer Correct Answer: B) Stephen Jay Gould. 3. When quantity supplied is greater than the quantity demanded, what is the condition know as? A) Abundant supply. B) Disequilibrium. C) Excess availability. D) Excess supply. Show Answer Correct Answer: D) Excess supply. 4. Which of the following best describes how thermal energy moves in a predictable pattern within a closed system until thermal equilibrium is reached? A) It always moves from cooler to warmer areas. B) It moves randomly within the system. C) It moves from warmer to cooler areas until equilibrium. D) It remains stagnant and doesn't move. Show Answer Correct Answer: C) It moves from warmer to cooler areas until equilibrium. 5. Dividing up goods and services without regard to price A) Rationing. B) Black market. C) Supply shock. D) Free market. Show Answer Correct Answer: A) Rationing. 6. Catalysts and inert gases do not shift an equilibrium. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 7. The equilibrium constant that is significantly greater than one favors: A) Reactants. B) Products. C) Neither reactants nor products. D) None of the above. Show Answer Correct Answer: B) Products. 8. Why does a higher concentration increase the rate of reaction? A) It increases the amount of reactants. B) It lowers the activation energy. C) It increases the energy of particle collisions. D) It increases the frequency of particle collisions. Show Answer Correct Answer: D) It increases the frequency of particle collisions. 9. A catalyst is added to a reaction at equilibrium. What is the effect on the equilibrium position? A) The equilibrium position shifts to the right. B) The equilibrium position shifts to the left. C) The equilibrium position remains unchanged. D) The reaction rate decreases. Show Answer Correct Answer: C) The equilibrium position remains unchanged. 10. Which of the following statements about the equilibrium constant (K) is true? A) K is always greater than 1 for all reactions. B) K is independent of temperature. C) K is the same for both forward and reverse reactions. D) K is a measure of the extent to which a reaction proceeds to completion. Show Answer Correct Answer: D) K is a measure of the extent to which a reaction proceeds to completion. 11. If equilibrium constant for a forward reaction is 10 then equilibrium constant for the backward reaction is: A) -10. B) 10. C) 1/10. D) 0.01. Show Answer Correct Answer: C) 1/10. 12. Solutions are composed of ..... A) Salts and solutes. B) Solvents and salts. C) Solutes and alloys. D) Solutes and solvents. Show Answer Correct Answer: D) Solutes and solvents. 13. Steel used in construction get rusted in open atmosphere over time because A) Steel is in unstable state & rust is stable state. B) Steel is in metastable state & rust is most stable state. C) Steel is the most stable state & rust is unstable state. D) Steel is unstable state but rust is metastable state. Show Answer Correct Answer: B) Steel is in metastable state & rust is most stable state. 14. Punctuated equilibrium ..... A) Involves bursts of change & periods of stability. B) Takes place slowly over long periods of time. C) Involves organisms evolving together. D) Involves organisms splitting from a common ancestor. Show Answer Correct Answer: A) Involves bursts of change & periods of stability. 15. Increasing the concentration of the reactants will slow down the reaction. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 16. In a chemical reaction, if the reactants are heated, the reaction usually happens A) Faster. B) Slower. C) At the same rate. D) In a smaller volume. Show Answer Correct Answer: A) Faster. 17. If the marginal rate of substitution (MRS) declines, then the indifference curve is:- A) Concave to the origin. B) Straight line cutting both the axis. C) Convex to the origin. D) None of the above. Show Answer Correct Answer: C) Convex to the origin. 18. If you added ice (0$^{o}$C) to a glass of water (15$^{o}$C) how would the heat move between the ice & water? A) From the ice to the water. B) From the water to the ice. C) All the above. D) None of the above. Show Answer Correct Answer: B) From the water to the ice. 19. Write a balanced symbol equation for the answer to question four A) H$_{2}$(g) + Co$_{2}$(g) <$\rightarrow$ 2NH$_{3}$(g). B) N$_{2}$(g) + H$_{2}$(g) <$\rightarrow$ 2CO$_{3}$(g). C) N$_{2}$(g) + H$_{2}$(g) <$\rightarrow$ 2NH$_{3}$(g). D) None of the above. Show Answer Correct Answer: C) N$_{2}$(g) + H$_{2}$(g) <$\rightarrow$ 2NH$_{3}$(g). 20. The slope of indifference curve is:- A) Concave. B) Convex. C) Straight line. D) MRS. Show Answer Correct Answer: D) MRS. 21. We do not include the following in equilibrium expressions: A) Gases and liquids. B) Gases and aqueous solutions. C) Solids and aqueous solutions. D) Liquids and solids. Show Answer Correct Answer: D) Liquids and solids. 22. The allele frequency of p=.20 What is q? A) .80. B) .04. C) .32. D) .64. Show Answer Correct Answer: A) .80. 23. What are the two factors that help determine that equilibrium is reached? A) Forward reaction rate is faster than the reverse and the concentrations are equal. B) Forward and reverse reaction rates are equal and concentrations are equal. C) Forward and reverse reaction rates are equal and concentrations are constant. D) None of the above. Show Answer Correct Answer: C) Forward and reverse reaction rates are equal and concentrations are constant. 24. When quantity demanded exceeds quantity supplied at a certain cost A) Shortage. B) Fad. C) Search costs. D) Surplus. Show Answer Correct Answer: A) Shortage. 25. If pH of a saturated solution of Ba(OH)2 is 12, the value of its KSP A) 5.00 x 10$^{-7 }$M$^{3}$. B) 4.00 x 10$^{-7 }$M$^{3}$. C) 4.00 x 10$^{-6 }$M$^{3}$. D) 5.00 x 10$^{-6}$M$^{3}$. Show Answer Correct Answer: C) 4.00 x 10$^{-6 }$M$^{3}$. ← PreviousNext →Related QuizzesClass 11 Chemistry (Part I) Chapter 7 Equilibrium Quiz 1Class 11 Chemistry (Part I) Chapter 7 Equilibrium Quiz 2Class 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 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books