This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 7 Equilibrium – Quiz 20 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 7 Equilibrium Quiz 20 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Consumer equilibrium occurs when ..... A) They have spent all of their income. B) A person consumes quantities of three goods. C) A person consumes quantities of two goods. D) Satisfaction is maximised for a given level of income. Show Answer Correct Answer: D) Satisfaction is maximised for a given level of income. 2. A temperature increase causes the particles ..... A) To slow down. B) Move faster. C) Collide higher. D) In the right order. Show Answer Correct Answer: B) Move faster. 3. MU is A) TU/Q. B) Change in TU/ change in quantity. C) Change in quantity/ change in TU. D) MU/Q. Show Answer Correct Answer: B) Change in TU/ change in quantity. 4. In a chemical reaction at equilibrium, what is the effect of decreasing the concentration of a product? A) The equilibrium shifts to favor the reactants. B) The equilibrium shifts to favor more product formation. C) The equilibrium position does not change. D) The equilibrium constant decreases. Show Answer Correct Answer: B) The equilibrium shifts to favor more product formation. 5. For any reaction at chemical equilibrium, the concentrations of products and reactants A) Are equal. B) Change. C) Remain unchanged. D) Decrease. Show Answer Correct Answer: C) Remain unchanged. 6. If body is in equilibrium under four forces then A) Resultant of any two forces equal to resultant of remaining. B) Resultant of any one forces equal to resultant of remaining. C) Resultant of any three forces equal to resultant of remaining. D) Can't say. Show Answer Correct Answer: A) Resultant of any two forces equal to resultant of remaining. 7. What is the pH of a solution that has an [H$_{3}$O$^{+}$] =1x10$^{-4}$? A) 4. B) -4. C) 2. D) 3. Show Answer Correct Answer: A) 4. 8. What does a large equilibrium constant (K much greater than 1) indicate? A) The equilibrium favors the reactants. B) The equilibrium favors the products. C) The reaction is irreversible. D) The reaction is at a high temperature. Show Answer Correct Answer: B) The equilibrium favors the products. 9. To slow down a chemical reaction you will do one of the following: A) Place the reactants in hot water. B) Place the products in ice bath. C) Place the reactants in a ice bath. D) Keep stirring the reactants with a stirring rod. Show Answer Correct Answer: C) Place the reactants in a ice bath. 10. What type of energy transfer occurs when hot water flows through cool water? A) Insulation. B) Radiation. C) Conduction. D) Convection. Show Answer Correct Answer: D) Convection. 11. The price where the quantity supplied equals the quantity demanded is known as A) Opportunity cost. B) Demand curve. C) Marginal analysis. D) Market equilibrium. Show Answer Correct Answer: D) Market equilibrium. 12. Indifference curve A) Concave to the origin. B) Both A & B. C) Convex to the origin. D) None of the above. Show Answer Correct Answer: C) Convex to the origin. 13. Changes in either demand or supply cause changes in market equilibrium A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 14. Which one of the following substances has the highest proton affinity? A) H$_{2}$S. B) NH$_{3}$. C) PH$_{3}$. D) H$_{2}$O. Show Answer Correct Answer: B) NH$_{3}$. 15. With unbalanced forces, the object will move in the direction of the ..... force. A) Larger. B) Smaller. C) Equal. D) None of the above. Show Answer Correct Answer: A) Larger. 16. A platform scale reads the A) Size. B) Mass. C) Density. D) Normal force. Show Answer Correct Answer: D) Normal force. 17. The moment of a force causes an object to A) Move forward. B) Move backward. C) Stop moving. D) Turn about a fixed point. Show Answer Correct Answer: D) Turn about a fixed point. 18. When quantity demanded is more than quantity supplied A) Price ceiling. B) Excess demand. C) Equilibrium. D) Disequilbrium. Show Answer Correct Answer: B) Excess demand. 19. A wrench is used to tighten a nut. A 25N perpendicular force is applied 50cm away from the axis of rotation, and moves a distance of 10 cm as it turns. What is the torque applied to the wrench? A) 10.0 Nm. B) 12.5 Nm. C) 750 Nm. D) 150 Nm. Show Answer Correct Answer: B) 12.5 Nm. 20. If no external torque acts on a body, its angular velocity remains conserved. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 21. In a chemical reaction, if the equilibrium constant (K ..... c) is very small, what does this indicate about the reaction? A) The reaction favors the formation of products. B) The reaction favors the formation of reactants. C) The reaction is at equilibrium. D) The reaction is very fast. Show Answer Correct Answer: B) The reaction favors the formation of reactants. 22. How does the equilibrium constant change with temperature for an exothermic reaction? A) It increases as temperature increases. B) It decreases as temperature increases. C) It remains constant regardless of temperature changes. D) It first increases and then decreases with temperature. Show Answer Correct Answer: B) It decreases as temperature increases. 23. In the equilibrium expression, K represents A) The reactants' concentration. B) The products' concentration. C) The rate constant. D) The equilibrium constant. Show Answer Correct Answer: D) The equilibrium constant. 24. Which statement is true for a saturated solution? A) It must be a concentrated solution. B) It must be a diluted solution. C) Neither dissolving nor crystallizing is occurring. D) The rate of dissolving equals the rate of crystallizing. Show Answer Correct Answer: D) The rate of dissolving equals the rate of crystallizing. 25. Which of the following substances present in the chemical reaction would NOT be included in the equilibrium constant expression? A) Solvents. B) NaCl(s). C) H$_{2}$O(l). D) NH$_{4}$Cl(s). E) All of these. Show Answer Correct Answer: E) All of these. ← 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