This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Chemistry Part I > Class 11 Chemistry (Part I) Chapter 7 Equilibrium – Quiz 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 7 Equilibrium Quiz 11 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What will happen if there is more supply in the market than there is a demand of the product? A) Shortage. B) Surplus. C) Equilibrium. D) None of the above. Show Answer Correct Answer: B) Surplus. 2. If the cost of one aspect of a good decreases, it becomes cheaper to produce that good, and producers increase supply. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 3. Marginal utility is equal to which of the following A) Total income divided by the price of the product. B) The change in total utility from consuming one more unit of a good. C) The satisfaction obtained from consuming any number of units of a good. D) None of the above is correct. Show Answer Correct Answer: B) The change in total utility from consuming one more unit of a good. 4. Describe chemical equilibrium. A) A state where only the forward reaction occurs. B) A state where the reaction stops completely. C) A state where the reverse reaction occurs faster than the forward reaction. D) A state in a chemical reaction where the forward and reverse reactions occur at the same rate. Show Answer Correct Answer: D) A state in a chemical reaction where the forward and reverse reactions occur at the same rate. 5. What two factors indicate that a reaction is at equilibrium? A) Concentrations are equal; the forward and reverse reactions are equal. B) The concentrations are constant; the forward and reverse reactions are equal. C) The concentrations are equal; the forward reaction is faster than the reverse reaction. D) The concentrations are constant; the forward reaction is faster than the reverse reaction. Show Answer Correct Answer: B) The concentrations are constant; the forward and reverse reactions are equal. 6. When pressure is increased, the position of the equilibrium will shift to the side that has ..... A) Less number of gaseous molecules. B) More number of gaseous molecules. C) All the above. D) None of the above. Show Answer Correct Answer: A) Less number of gaseous molecules. 7. How can chemical equilibrium be disturbed? A) By adding or removing reactants or products. B) By changing the temperature of the system. C) By altering the pressure of the system. D) By increasing the surface area of the reaction vessel. Show Answer Correct Answer: A) By adding or removing reactants or products. 8. Assume that the market for bottled water is in equilibrium. If both the supply of and the demand for bottled water decrease, what will be the effect on equilibrium price and quantity? A) Price-IncreaseQuantity-Indeterminate. B) Price-DecreaseQuantity-Increase. C) Price-IndeterminateQuantity-Decrease. D) Price-IncreaseQuantity-Decrease. E) Price-DecreaseQuantity-Decrease. Show Answer Correct Answer: C) Price-IndeterminateQuantity-Decrease. 9. When surface area is decreased the rate of reaction ..... A) Increases, because there are MORE possible sites for correct collisions. B) Increases, because there are LESS possible sites for correct collisions. C) Decreases, because there are MORE possible sites for correct collisions. D) Decreases, because there are LESS possible sites for correct collisions. Show Answer Correct Answer: D) Decreases, because there are LESS possible sites for correct collisions. 10. When MU is negative TU:- A) Increases. B) Decreases. C) Constant. D) None of the above. Show Answer Correct Answer: B) Decreases. 11. What is the government controlled price ceiling on apartment prices called? A) Rent control. B) Rent monitoring. C) Floor pricing. D) Equilibrium level. Show Answer Correct Answer: A) Rent control. 12. What is the point called where the supply and demand curves intersect on an equilibrium graph? A) Equilibrium point. B) Supply point. C) Demand point. D) Intersection point. Show Answer Correct Answer: A) Equilibrium point. 13. Siapa penyelenggara EQUITALK 2021? A) Panitia Pelaksana. B) DPM (Dewan Perwakilan Mahasiswa). C) HIMA (Himpunan Mahasiswa). D) BEM (Badan Eksekutif Mahasiswa). Show Answer Correct Answer: D) BEM (Badan Eksekutif Mahasiswa). 14. The solubility of AgI in NaI solution is less than that in pure water because A) AgI forms complex with NaI. B) Solubility product of AgI is less than that of NaI. C) Of common ion effect. D) The temperature of the solution decreases. Show Answer Correct Answer: C) Of common ion effect. 15. What are the units of force A) Pounds. B) Meters. C) Voltage. D) Newtons. Show Answer Correct Answer: D) Newtons. 16. The solubility of CaSO$_{4}$ in pure water at 0$^\circ$C is 1.0 gram per liter. The value of the solubility product, Ksp, is:(molar mass of CaSO$_{4}$ is 136.15 g/mol) A) 5.4 x 10$^{-5}$. B) 1.0 x 10$^{-4}$. C) 1.0. D) 7.3 x 10$^{-3}$. Show Answer Correct Answer: A) 5.4 x 10$^{-5}$. 17. A mass of 1 kg. Is attached to the middle of a rope, which is being pulled from both ends in the opposite directions. Taking g = 10 m/s$^{2}$, the minimum pull required to completely straighten the rope will be A) 5 N. B) 20 N. C) 25 N. D) Much larger than 25 N. Show Answer Correct Answer: D) Much larger than 25 N. 18. Which of the following statements is true about a system at equilibrium? A) The forward and reverse reactions occur at different rates. B) The forward and reverse reactions stop occurring. C) The forward and reverse reactions occur at the same rate. D) The forward reaction occurs faster than the reverse reaction. Show Answer Correct Answer: C) The forward and reverse reactions occur at the same rate. 19. The definition of a supersaturated solution. A) A supersaturated solution is a solution that contains more dissolved solute than what is typically possible at a given temperature. B) A supersaturated solution is a solution that contains only the maximum amount of solute possible. C) A supersaturated solution is a solution that has no dissolved solute at all. D) A supersaturated solution is a solution that is in equilibrium with undissolved solute. Show Answer Correct Answer: A) A supersaturated solution is a solution that contains more dissolved solute than what is typically possible at a given temperature. 20. Why are indifference curves convex to the origin? A) Two goods are perfect complementary goods. B) Two goods are imperfect substitutes. C) Two goods are perfect substitutes. D) None of the above. Show Answer Correct Answer: B) Two goods are imperfect substitutes. 21. What is a closed system A) It gives out energy. B) The reactants and the products do not escape from reaction mixture. C) It takes in energy. D) The reactants and the products escape from he reaction mixture to be kept in the system. Show Answer Correct Answer: B) The reactants and the products do not escape from reaction mixture. 22. 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. 23. 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. 24. When quantity supplied is greater than the quantity demanded, what is the condition know as? A) Abundant supply. B) Excess supply. C) Disequilibrium. D) Excess availability. Show Answer Correct Answer: B) Excess supply. 25. 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. 26. Dividing up goods and services without regard to price A) Rationing. B) Black market. C) Free market. D) Supply shock. Show Answer Correct Answer: A) Rationing. 27. 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. 28. 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. 29. Why does a higher concentration increase the rate of reaction? A) It increases the energy of particle collisions. B) It increases the frequency of particle collisions. C) It lowers the activation energy. D) It increases the amount of reactants. Show Answer Correct Answer: B) It increases the frequency of particle collisions. 30. A catalyst is added to a reaction at equilibrium. What is the effect on the equilibrium position? A) The equilibrium position shifts to the left. B) The equilibrium position remains unchanged. C) The equilibrium position shifts to the right. D) The reaction rate decreases. Show Answer Correct Answer: B) The equilibrium position remains unchanged. 31. 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. 32. If equilibrium constant for a forward reaction is 10 then equilibrium constant for the backward reaction is: A) 10. B) 1/10. C) -10. D) 0.01. Show Answer Correct Answer: B) 1/10. 33. 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. 34. 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 unstable state but rust is metastable state. D) Steel is the most stable state & rust is unstable state. Show Answer Correct Answer: B) Steel is in metastable state & rust is most stable state. 35. Punctuated equilibrium ..... A) Involves organisms evolving together. B) Takes place slowly over long periods of time. C) Involves bursts of change & periods of stability. D) Involves organisms splitting from a common ancestor. Show Answer Correct Answer: C) Involves bursts of change & periods of stability. 36. 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. 37. 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. 38. 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. 39. 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. 40. 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). 41. The slope of indifference curve is:- A) Convex. B) Straight line. C) Concave. D) MRS. Show Answer Correct Answer: D) MRS. 42. 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. 43. The allele frequency of p=.20 What is q? A) .64. B) .04. C) .32. D) .80. Show Answer Correct Answer: D) .80. 44. 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. 45. When quantity demanded exceeds quantity supplied at a certain cost A) Shortage. B) Search costs. C) Fad. D) Surplus. Show Answer Correct Answer: A) Shortage. 46. 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) 5.00 x 10$^{-6}$M$^{3}$. C) 4.00 x 10$^{-6 }$M$^{3}$. D) 4.00 x 10$^{-7 }$M$^{3}$. Show Answer Correct Answer: C) 4.00 x 10$^{-6 }$M$^{3}$. 47. A substance that increases speed of chemical reaction without being being changed is called: A) Base. B) Catalyst. C) Pressure. D) Acid. Show Answer Correct Answer: B) Catalyst. 48. Why is medium temperature used in the Haber process? A) Low temperature will form more ammonia. B) High temperature will form more hydrogen and nitrogen. C) The rate slows down. D) To increase the rate but not negatively affecting the yield. Show Answer Correct Answer: D) To increase the rate but not negatively affecting the yield. 49. A string 2 m long is tied to the ends of a uniform rod that weight 60 N and is 1.6 m long. The string passes over a nail so that the rod hangs vertically. The tension in the string will be. A) 50 N. B) 24 N. C) 30 N. D) 42 N. Show Answer Correct Answer: A) 50 N. 50. Which is incorrect for buffer solution? A) There is no change is pH value when acid and base is mixed. B) It contains strong acid and its conjugate base. C) It contains weak acid and its conjugate base. D) It contains weak base and its conjugate acid. Show Answer Correct Answer: B) It contains strong acid and its conjugate base. 51. A 15-kg child is sitting on a playground teeter-totter, 1.5 m from the pivot. What is the magnitude of the minimum force, applied 0.30 m on the other side of the pivot, that is needed to make the child lift off the ground? A) 740 N. B) 23 N. C) 44 N. D) 66 N. Show Answer Correct Answer: A) 740 N. 52. Explain the concept of dynamic equilibrium in chemical reactions. A) Equal rates of forward and reverse reactions. B) The reaction only proceeds in one direction. C) The reaction stops completely. D) The reaction rate increases over time. Show Answer Correct Answer: A) Equal rates of forward and reverse reactions. 53. Which form of evolution can occur quickly? A) Gradualism. B) Punctuated equilibrium. C) Allopatric speciation. D) Sympatric speciation. Show Answer Correct Answer: B) Punctuated equilibrium. 54. The minimum amount of energy needed for colliding particles to react is called A) Activation Energy. B) Potential Energy. C) Kinetic Energy. D) Chemical Energy. Show Answer Correct Answer: A) Activation Energy. 55. True or False:The value of K$_{eq}$ is constant AT a given temperature, but changes if the temperature is changed. A) True. B) False, the equilibrium constant is always the same regardless of the temperature. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 56. Business conducted without regard for government controls A) Free market. B) Black market. C) Supply shock. D) Rationing. Show Answer Correct Answer: B) Black market. 57. Indifference curve is a A) Tabular Presentation. B) Diagrammatic Presentation. C) Both A & B b. D) None of the above. Show Answer Correct Answer: B) Diagrammatic Presentation. 58. Will precipitation occur when 3.5 x 10$^{2}$ mL of 3.2 M Pb(NO$_{3}$)$^{2}$ and 2.0 x 10$^{2}$ mL of 0.020 M NaCl are added together. Ksp for the lead chloride is 1.6 x 10$^{-5}$. A) Maybe, it depends on the limiting reagent. B) No, Q$_{sp}$ is less than K$_{sp}$. C) Maybe, it depends on the temperature. D) Yes, Q$_{sp}$ is greater than K$_{sp}$. Show Answer Correct Answer: D) Yes, Q$_{sp}$ is greater than K$_{sp}$. 59. Consider this system:2CCl$_{4}$(g) + O$_{2}$(g)<$\rightarrow$2COCl$_{2}$(g) + 2Cl$_{2}$(g) $\Delta$H =-35 kJ/mol$_{rxn}$Predict the effect of increasing temperature. A) Speed up forward reaction. B) Speed up reverse reaction. C) No change. D) None of the above. Show Answer Correct Answer: B) Speed up reverse reaction. 60. What evidence supports the theory of punctuated equilibrium? A) Genetic mutations occurring at a constant rate. B) Fossil records showing sudden appearance of new species. C) Observations of species adapting slowly over time. D) Continuous fossil records showing gradual change. Show Answer Correct Answer: B) Fossil records showing sudden appearance of new species. ← PreviousNext →Related QuizzesScience QuizzesClass 11 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 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books