This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 7 Equilibrium – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 7 Equilibrium Quiz 1 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is a characteristic of a dynamic equilibrium? A) The forward and reverse reactions occur at different rates. B) The concentrations of reactants and products change over time. C) The forward and reverse reactions occur at the same rate. D) The system is closed and isolated. Show Answer Correct Answer: C) The forward and reverse reactions occur at the same rate. 2. Which statement is always true for a chemical reaction that has reached equilibrium at a constant temperature? A) The yield of product(s) is greater than 50%. B) The rate of the reverse reaction is lower than that of the forward reaction. C) The amounts of reactants and products do not change. D) Both forward and reverse reactions have stopped. Show Answer Correct Answer: C) The amounts of reactants and products do not change. 3. Smaller particle size allows for a ..... surface area to be exposed for the reaction. A) Larger. B) Smaller. C) All the above. D) None of the above. Show Answer Correct Answer: A) Larger. 4. For roller support number unknown reactions A) 2. B) 1. C) 3. D) None of these. Show Answer Correct Answer: B) 1. 5. In an experiment, the equilibrium constant $K_c$ A) The concentration of reactants is much higher than that of products. B) The concentration of products is much higher than that of reactants. C) The concentrations of reactants and products are equal. D) The reaction does not reach equilibrium. Show Answer Correct Answer: B) The concentration of products is much higher than that of reactants. 6. Static equilibrium A) Condition of continuous, random movement of particles but no overall change in concentration of materials. B) The reaction that forms reactants from products. C) A condition where the reaction occurring in a system is completely halted and there exists no movement between the reactants and the products corresponding to the chemical reaction. D) A measurement of how much solute exists within a certain volume of solvent or solution. Show Answer Correct Answer: C) A condition where the reaction occurring in a system is completely halted and there exists no movement between the reactants and the products corresponding to the chemical reaction. 7. It is a chemical reaction where the reactants form products and the products form reactants. A) Reversible reaction. B) Nonreversible reaction. C) Decomposition reaction. D) Standard reaction. Show Answer Correct Answer: A) Reversible reaction. 8. Why is the equilibrium constant expressed using the concentrations of reactants and products rather than their amounts in moles? A) Concentrations allow for easier comparison between different reactions. B) Concentrations are more precise than moles in measuring the extent of a reaction. C) Concentrations take into account the volume of the reaction vessel. D) Concentrations are directly related to the rate of the reaction. Show Answer Correct Answer: C) Concentrations take into account the volume of the reaction vessel. 9. In a population of humans, the frequency of no dimples is 0.36. If having no dimples is the recessive phenotype, what is the frequency of the recessive allele? A) 0.6. B) 0.36. C) 0.64. D) 0.18. Show Answer Correct Answer: A) 0.6. 10. Siapa nama lengkap Bli Monez? A) Profesor Ida Bagus Mantra. B) I Made Wahyu Suarjaya. C) Ida Bagus Ratu Antoni Putra. D) Ida Bagus Gede Prabawa Putra Udiyana. Show Answer Correct Answer: C) Ida Bagus Ratu Antoni Putra. 11. In a house, what is the purpose of insulation in terms of thermal energy transfer? A) To promote rapid heat loss. B) To enhance radiation. C) To minimize heat transfer. D) To encourage conduction. Show Answer Correct Answer: C) To minimize heat transfer. 12. Why does the government place price ceilings on some "essential" goods? A) To prevent inflation during to reduce supply for these goods. B) To keep business people from making large profits. C) To keep the goods from becoming too expensive. D) To reduce demand for these goods. Show Answer Correct Answer: C) To keep the goods from becoming too expensive. 13. Law of DMU state that A) As consumption increases, total satisfaction remains constant. B) The law of DMU states that more consumption always leads to more satisfaction. C) Additional units of consumption provide the same level of satisfaction. D) As consumption increases, the additional satisfaction from each unit decreases. Show Answer Correct Answer: D) As consumption increases, the additional satisfaction from each unit decreases. 14. What is the term used to describe the position of equilibrium when there are more reactants than products? A) Dynamic equilibrium. B) Static equilibrium. C) Equilibrium lies to the left. D) Equilibrium lies to the right. Show Answer Correct Answer: C) Equilibrium lies to the left. 15. What is the rate of reaction? A) How fast a reaction is. B) How big a reaction is. C) How loud a reaction is. D) How much gas a reaction produces. Show Answer Correct Answer: A) How fast a reaction is. 16. What is characterized by changes in conditions where supply and demand are out of balance? A) Market Price. B) Market Disequilibrium. C) Market Equilibrium. D) None of the above. Show Answer Correct Answer: B) Market Disequilibrium. 17. In case of the free body diagram of a body, the false statement(s) is, A) FBD is useful in analysing the equilibrium of a constrained body. B) FBD is helpful in finding reactions at the supports. C) Only active forces are shown in FBD. D) None of the these. Show Answer Correct Answer: C) Only active forces are shown in FBD. 18. Utility is generally related to? A) Satisfaction. B) Necessary. C) Useless. D) Useful. Show Answer Correct Answer: A) Satisfaction. 19. The major theory of reaction rate is called A) Collision theory. B) Crash theory. C) Newton's laws. D) Thermodynamics. Show Answer Correct Answer: A) Collision theory. 20. A consumer is said to be in equilibrium when he is said to get A) Maximum satisfaction. B) Maximum profit. C) All the above. D) None of the above. Show Answer Correct Answer: A) Maximum satisfaction. 21. At equilibrium, ..... A) All chemical reactions have ceased. B) The rate constants of the forward and reverse reactions are equal. C) The rates of the forward and reverse reactions are equal. D) The value of the equilibrium constant is 1. Show Answer Correct Answer: C) The rates of the forward and reverse reactions are equal. 22. In an exothermic reaction energy is transferred from A) Reactants to their surroundings. B) The surroundings to reactants. C) One reactant to another. D) The container to the chemicals. Show Answer Correct Answer: A) Reactants to their surroundings. 23. In a closed system at equilibrium, which of the following changes will NOT affect the equilibrium position of the reaction $N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(g)$ A) Increasing the concentration of $N_2$. B) Decreasing the volume of the container. C) Adding a catalyst. D) Increasing the temperature. Show Answer Correct Answer: C) Adding a catalyst. 24. When quantity supplied exceeds quantity demanded at a certain price. A) Shortage. B) Fad. C) Search costs. D) Surplus. Show Answer Correct Answer: D) Surplus. 25. In the equilibrium reaction, what is the effect of removing from the system? A) The equilibrium shifts to the left. B) The equilibrium shifts to the right. C) The equilibrium remains unchanged. D) The reaction stops. Show Answer Correct Answer: B) The equilibrium shifts to the right. Next →Related QuizzesClass 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 10Class 11 Chemistry (Part I) Chapter 7 Equilibrium Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books