This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 7 Equilibrium – Quiz 26 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 7 Equilibrium Quiz 26 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is the correct equilibrium expression for the reaction:$2SO_2(g) + O_2(g) \rightleftharpoons 2SO_3(g)$ A) $K_c = \frac{[SO_3]^2}{[SO_2]^2[O_2]}$. B) $K_c = \frac{[SO_2]^2[O_2]}{[SO_3]^2}$. C) $K_c = \frac{[SO_3]}{[SO_2][O_2]}$. D) $K_c = \frac{[SO_2][O_2]}{[SO_3]^2}$. Show Answer Correct Answer: A) $K_c = \frac{[SO_3]^2}{[SO_2]^2[O_2]}$. 2. Which of the following scenarios is an example of punctuated equilibrium? A) A species of bird gradually changes its beak shape over millions of years. B) A species of fish remains unchanged for millions of years, then rapidly evolves new traits. C) A species of mammal slowly increases in size over time. D) A species of insect adapts to a new environment over several generations. Show Answer Correct Answer: B) A species of fish remains unchanged for millions of years, then rapidly evolves new traits. 3. Which of the following describes the law of supply? A) An increase in the price of a good will decrease the quantity demanded. B) The price of a good will increase if production input costs increase. C) An increase in taxes will decrease the supply of a good. D) An increase in the number of sellers will increase the supply of a good. E) An increase in the price of a good will increase the quantity supplied. Show Answer Correct Answer: E) An increase in the price of a good will increase the quantity supplied. 4. 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. 5. 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. 6. 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. 7. 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. 8. 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. 9. 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. 10. How can chemical equilibrium be disturbed? A) By changing the temperature of the system. B) By altering the pressure of the system. C) By adding or removing reactants or products. D) By increasing the surface area of the reaction vessel. Show Answer Correct Answer: C) By adding or removing reactants or products. 11. 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-DecreaseQuantity-Decrease. B) Price-DecreaseQuantity-Increase. C) Price-IncreaseQuantity-Decrease. D) Price-IncreaseQuantity-Indeterminate. E) Price-IndeterminateQuantity-Decrease. Show Answer Correct Answer: E) Price-IndeterminateQuantity-Decrease. 12. When surface area is decreased the rate of reaction ..... A) Decreases, because there are LESS 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) Increases, because there are MORE possible sites for correct collisions. Show Answer Correct Answer: A) Decreases, because there are LESS possible sites for correct collisions. 13. When MU is negative TU:- A) Increases. B) Decreases. C) Constant. D) None of the above. Show Answer Correct Answer: B) Decreases. 14. What is the government controlled price ceiling on apartment prices called? A) Floor pricing. B) Rent control. C) Equilibrium level. D) Rent monitoring. Show Answer Correct Answer: B) Rent control. 15. 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. 16. Siapa penyelenggara EQUITALK 2021? A) Panitia Pelaksana. B) HIMA (Himpunan Mahasiswa). C) DPM (Dewan Perwakilan Mahasiswa). D) BEM (Badan Eksekutif Mahasiswa). Show Answer Correct Answer: D) BEM (Badan Eksekutif Mahasiswa). 17. The solubility of AgI in NaI solution is less than that in pure water because A) Solubility product of AgI is less than that of NaI. B) Of common ion effect. C) AgI forms complex with NaI. D) The temperature of the solution decreases. Show Answer Correct Answer: B) Of common ion effect. 18. What are the units of force A) Newtons. B) Voltage. C) Meters. D) Pounds. Show Answer Correct Answer: A) Newtons. 19. 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) 1.0. B) 7.3 x 10$^{-3}$. C) 1.0 x 10$^{-4}$. D) 5.4 x 10$^{-5}$. Show Answer Correct Answer: D) 5.4 x 10$^{-5}$. 20. 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. 21. 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. 22. What is the equilibrium expression for:Fe$_{3}$O$_{4}$(s) + 4H$_{2}$(g) <=> 3Fe(s) + 4H$_{2}$O(g)K$_{eq}$ = A) [Fe]$^{3 }$[H$_{2}$O]$^{4}$ / [Fe$_{3}$O$_{4}$] [H$_{24}$. B) [Fe$_{3}$O$_{4}$] [H$_{2}$]$^{4 }$/ [Fe]$^{3 }$[H$_{2}$O]$^{4}$. C) [H$_{2}$O]$^{4}$ / [H$_{2}$]$^{4}$. D) [Fe] [H$_{2}$O] / [Fe$_{3}$O$_{4}$] [H$_{2}$]. Show Answer Correct Answer: C) [H$_{2}$O]$^{4}$ / [H$_{2}$]$^{4}$. 23. 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. 24. 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. 25. 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. ← 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