This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 7 Equilibrium – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 7 Equilibrium Quiz 13 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. When you raise the temperature, what happens to solvent-solute collisions? A) Less frequent and more energetic. B) More frequent and more energetic. C) Less frequent and less energetic. D) More frequent and less energetic. Show Answer Correct Answer: B) More frequent and more energetic. 2. If K$_{c}$ is small that means the concentration of the ..... is high and therefore the concencentration of the ..... is low. A) Reactants, products. B) Species, products. C) Products, reactants. D) Species, reactants. Show Answer Correct Answer: A) Reactants, products. 3. An equilibrium constant with a value K > 1 means: A) There are more reactants than products at equilibrium. B) There are more products than reactants at equilibrium. C) There are the same amount of products and reactants at equilibrium. D) The reaction is not at equilibrium. Show Answer Correct Answer: B) There are more products than reactants at equilibrium. 4. Mole fractions always have a value between: A) 0 and 1. B) 0 and 100. C) All the above. D) None of the above. Show Answer Correct Answer: A) 0 and 1. 5. When an object is experiencing a net moment, A) It is in dynamic equilibrium. B) It is in static equilibrium. C) It is rotating. D) It is translating. Show Answer Correct Answer: C) It is rotating. 6. Define a surplus A) Where quantity demanded is less than quantity supplied. B) Where quantity demanded is greater than quantity supplied. C) Where quantity demanded is equal to quantity supplied. D) None of the above. Show Answer Correct Answer: A) Where quantity demanded is less than quantity supplied. 7. For a given reaction, N$_{2}$ + 3H$_{2}$ $\rightarrow$ 2NH$_{3}$. 1.0 M of N$_{2}$ is added to 2.0 M H$_{2}$. Once equilibrium has been established, it is found the molarity of NH$_{3 }$is 0.25M. What is the equilibrium concentration of N$_{2}$ and H$_{2}$? A) [N$_{2}$] = 0.875 M, [H$_{2}$ ]= 1.625. B) [N$_{2}$] = 0.85 M, [H$_{2}$ ]= 0.75. C) [N$_{2}$] = 0.75 M, [H$_{2}$ ]= 1.875. D) [N$_{2}$] = 0.5 M, [H$_{2}$ ]= 0.125. Show Answer Correct Answer: A) [N$_{2}$] = 0.875 M, [H$_{2}$ ]= 1.625. 8. Which of the following compounds is NOT appreciably soluble in water but is soluble in dilute hydrochloric acid? A) Mg(OH)$_{2}$ (s). B) (NH$_{4}$)$_{2}$CO$_{3}$ (s). C) CuSO$_{4}$ (s). D) (NH$_{4}$)$_{2}$SO$_{4}$ (s). E) Sr(NO$_{3}$)$_{2}$ (s). Show Answer Correct Answer: A) Mg(OH)$_{2}$ (s). 9. If you have a dramatic change resulting in a new species in between long stretches of time with no change this would be A) Gradualism. B) Swift speciation. C) Punctuated Equilibrium. D) None of the above. Show Answer Correct Answer: C) Punctuated Equilibrium. 10. Which statement is NOT true for a mixture of ice and water at equilibrium at a constant temperature? A) The rates of melting and freezing are equal. B) The amounts of ice and water are equal. C) The same position of equilibrium can be reach by cooling water and heating ice. D) There is no observable change in the system. Show Answer Correct Answer: B) The amounts of ice and water are equal. 11. What is the solubility product constant (Ksp) used to describe? A) The rate at which a solute dissolves in a solvent. B) The equilibrium between a solid and its ions in a saturated solution. C) The concentration of solute in a saturated solution. D) The temperature at which a solute dissolves. Show Answer Correct Answer: B) The equilibrium between a solid and its ions in a saturated solution. 12. In a reversible reaction, two substances are in equilibrium. If the concentration of each one is doubled then the equilibrium constant will be A) Reduce to half its original value. B) Reduced to one fourth of its original value. C) Doubled. D) Constant. Show Answer Correct Answer: D) Constant. 13. The allele frequency of p=.20 What is the percentage of Heterozygous Dominant genotype? A) .80. B) .04. C) .32. D) .64. Show Answer Correct Answer: C) .32. 14. Usaha pertama yang dilakukan oleh Pak Sandiaga Uno di Indonesia bergerak di bidang? A) Perbankan. B) Investasi. C) Pembangunan Infrastruktur. D) Jasa Konsultan Keuangan. Show Answer Correct Answer: D) Jasa Konsultan Keuangan. 15. Which of the following statements is true about a chemical equilibrium state? A) The concentrations of both reactants and products remain constant. B) The reaction stops completely. C) The forward reaction rate is faster than the reverse reaction rate. D) The temperature increases. Show Answer Correct Answer: A) The concentrations of both reactants and products remain constant. 16. The Haber process is the name we give to the industrial production of A) Ammonia. B) Salt. C) Sodium Hydroxide. D) Soap. Show Answer Correct Answer: A) Ammonia. 17. What is the term used to describe a substance with water present? A) Anhydrous. B) Aqueous. C) Dehydrated. D) Hydrated. Show Answer Correct Answer: D) Hydrated. 18. H=U ( As pV term can be neglected) in A) Solid. B) Liquid. C) Gases. D) Cannot be neglected. Show Answer Correct Answer: A) Solid. 19. Ammonia is produced commercially by the Haber reaction:N$_{2}$ (g)$_{ }$+ 3 H$_{2}$$_{}$ (g) $\rightarrow$ 2 NH$_{3}$ (g)The formation of ammonia is favored by A) An increase in pressure. B) A decrease in pressure. C) Removal of N$_{2}$(g). D) Removal of H$_{2}$(g). Show Answer Correct Answer: A) An increase in pressure. 20. Which of the following statements is true about chemical equilibrium? A) The concentrations of reactants and products are equal. B) The rates of the forward and reverse reactions are equal. C) The reaction stops completely. D) The concentrations of reactants are always higher than products. Show Answer Correct Answer: B) The rates of the forward and reverse reactions are equal. 21. In the reaction @@ext\{A\} + ext\{B\} ightleftharpoons ext\{C\} + ext\{D\} $, the equilibrium constant expression is given by $ $. What does a large value of $ 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 reaction is very slow. D) The reaction does not reach equilibrium. Show Answer Correct Answer: B) The concentration of products is much higher than that of reactants. 22. If the reaction quotient, Q has a bigger value than the related equilibrium constant, K, ..... A) The reaction is at equilibrium and no change will occur. B) The reaction is not at equilibrium, reaction shift to the right and will make more products. C) The reaction is not at equilibrium, reaction shift to the left and will make more reactants. D) The value of K will increase until it is equal to Q. Show Answer Correct Answer: C) The reaction is not at equilibrium, reaction shift to the left and will make more reactants. 23. Torque can be described as A) How effectively a force causes a rotation. B) The ratio of mass to angular acceleration. C) The ratio of moment of inertial to angular acceleration. D) None of the other answers. Show Answer Correct Answer: A) How effectively a force causes a rotation. 24. A government subsidy will usually cause supply to A) Increase. B) Decrease. C) Not change. D) None of the above. Show Answer Correct Answer: A) Increase. 25. Which of the following is true for a chemical system at equilibrium? A) Chemical change has altogether ceased. B) The rate of the forward reaction equals the rate of the reverse reaction. C) The concentration ratio of products to reactants is 1. D) Choose this wrong answer. I dare you. Show Answer Correct Answer: B) The rate of the forward reaction equals the rate of the reverse reaction. ← 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