This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 7 Equilibrium – Quiz 23 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 7 Equilibrium Quiz 23 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The angle of rotation is A) Ratio of the radius to arc length. B) Product of arc length, pi, and radius. C) Ratio of the arc length to radius. D) Product of diameter and arc length. Show Answer Correct Answer: C) Ratio of the arc length to radius. 2. Marginal Utility A) Is always positive. B) Is always negative. C) Can be positive or negative but not zero. D) Can be positive or negative or zero. Show Answer Correct Answer: D) Can be positive or negative or zero. 3. When the following conditions are met, total utility is at its peak: A) Marginal utility is negative. B) Marginal utility is zero. C) Total utility is decreasing. D) Marginal utility is at its maximum. Show Answer Correct Answer: B) Marginal utility is zero. 4. A car weighing 15 000 N rests on a 15$^{o}$ hill. If the car's brakes were released, which of these components would move the car downhill? A) Parallel. B) Perpendicular. C) Downward. D) Clockwise. E) Counter Clockwise. Show Answer Correct Answer: A) Parallel. 5. Marginal utility refers to: A) The additional product produced as the firm adds one additional unit of an input. B) The additional utility that a consumer derives from consuming one additional unit of a good. C) The amount of utility divided by the number of units produced. D) All of the above. Show Answer Correct Answer: B) The additional utility that a consumer derives from consuming one additional unit of a good. 6. What do you call the difference between the maximum price a consumer is willing to pay and the actual price they do pay? A) Surplus. B) Consumer Surplus. C) Shortage. D) Producer Surplus. Show Answer Correct Answer: B) Consumer Surplus. 7. Types of moment A) Clockwise moment. B) Anticlockwise moment. C) All the above. D) None of the above. Show Answer Correct Answer: C) All the above. 8. If producers of lemonade expect a heatwave next week, today their supply of lemonade will A) Increase. B) Decrease. C) Stay the same. D) None of the above. Show Answer Correct Answer: B) Decrease. 9. When the rate of the forward reaction is equal to the rate of backward reaction, the system is said to be in A) Chemical Equilibrium. B) Chemical Balance. C) Stoichiometry. D) Chemical Reaction. Show Answer Correct Answer: A) Chemical Equilibrium. 10. The concentration of OH-in a saturated solution of Mg(OH)$_{2}$ is 3.6 x 10$^{-4 }$M. The Ksp of Mg(OH)$_{2}$ is A) 1.3 x 10$^{-7}$. B) 4.7 x 10$^{-11}$. C) 3.6 x 10$^{-4}$. D) 2.3 x 10$^{-11}$. Show Answer Correct Answer: D) 2.3 x 10$^{-11}$. 11. A very high value for K indicates that A) Reactants are favored. B) Products are favored. C) Equilibrium is reached slowly. D) Equilibrium has been reached. Show Answer Correct Answer: B) Products are favored. 12. What are spillover costs? A) Production costs paid by the general public. B) Extra distribution costs paid by the manufacturer. C) Distribution costs paid by the middle person. D) Regular rises in price absorbed by the market. Show Answer Correct Answer: A) Production costs paid by the general public. 13. How is the equilibrium constant defined? A) It is defined as the sum of the concentrations of reactants and products at equilibrium. B) It is defined as the ratio of the initial concentrations of reactants and products. C) It is defined as the ratio of the equilibrium concentrations of products to reactants. D) It is defined as the difference between the initial and equilibrium concentrations of reactants and products. Show Answer Correct Answer: C) It is defined as the ratio of the equilibrium concentrations of products to reactants. 14. What are some examples of heat transfer? A) Conduction. B) Convection. C) Radiation. D) All of the above. Show Answer Correct Answer: D) All of the above. 15. Which of the following statements is CORRECT for a reaction at an equilibrium? A) The rate of forward and reverse reactions are equal. B) The final concentrations of product and reactant are equal. C) The initial concentrations of product and reactant are equal. D) The rate constant of the forward and reverse reactions are equal. Show Answer Correct Answer: A) The rate of forward and reverse reactions are equal. 16. A force of 120 N is applied perpendicularly on a spanner at a distance of 9 cm from a nut. The torque produced by the force will be A) 12 Nm. B) 10.8 Nm. C) 15 Nm. D) 12.59 Nm. Show Answer Correct Answer: B) 10.8 Nm. 17. 64% of the population has the recessive phenotype. What is the percentage for Rr? A) .04. B) .32. C) .64. D) .2. E) .8. Show Answer Correct Answer: B) .32. 18. Which of the following statements correctly describes any chemical reaction that has reached equilibrium? A) The reaction is now irreversible. B) The rates of the forward and reverse reactions are equal. C) Both forward and reverse reactions have halted. D) The concentrations of products and reactants are equal. Show Answer Correct Answer: B) The rates of the forward and reverse reactions are equal. 19. On an equilibrium graph, what does a shift to the right indicate in a chemical reaction? A) More reactants are formed. B) More products are formed. C) The reaction has stopped. D) The reaction is at equilibrium. Show Answer Correct Answer: B) More products are formed. 20. Which of the following is true for a reaction at equilibrium? A) The concentrations of reactants and products are equal. B) The rates of the forward and reverse reactions are equal. C) The reaction has stopped. D) The temperature of the system is constant. Show Answer Correct Answer: B) The rates of the forward and reverse reactions are equal. 21. As you increase the pressure of a gas, its solubility in a liquid will A) Decrease. B) Increase. C) Stay the same. D) Pressure has no effect on the solubility of a gas in a liquid. Show Answer Correct Answer: B) Increase. 22. Heat always moves from ..... to ..... A) Cold; hot. B) Cold; cold. C) Hot; cold. D) Hot; hot. Show Answer Correct Answer: C) Hot; cold. 23. Given the reaction at equilibrium:2SO$_{2}$(g) +O$_{2}$(g) <$\rightarrow$ 2SO$_{3}$(g) + HEATWhich change will shift the equilibrium to the left? A) Decrease the pressure. B) Increasing the pressure. C) Decreasing the amount of SO$_{2}$(g). D) Decreasing the amount of O$_{2}$(g). Show Answer Correct Answer: A) Decrease the pressure. 24. The pH of rain water is approximately A) 7.5. B) 6.5. C) 7.0. D) 5.6. Show Answer Correct Answer: D) 5.6. 25. What volume is needed to make a 2.5 M solution if you have 240g of Sodium Hydroxide? A) 6. B) 0.42. C) 15. D) 2.4. Show Answer Correct Answer: D) 2.4. ← 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