This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Chemistry (Part I) Chapter 7 Equilibrium – Quiz 18 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Chemistry (Part I) Chapter 7 Equilibrium Quiz 18 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The transfer of energy by waves or particles is called A) Conduction. B) Convection. C) Radiation. D) Insulation. Show Answer Correct Answer: C) Radiation. 2. Which term is used to describe equilibrium between different substances as reactants and products? A) Chemical equilibrium. B) Physical equilibrium. C) Dynamic equilibrium. D) Irreversible equilibrium. Show Answer Correct Answer: A) Chemical equilibrium. 3. In which analysis Utility can be measured in numbers? A) Ordinal Analysis. B) Cardinal Analysis. C) Utility Analysis. D) None of these. Show Answer Correct Answer: B) Cardinal Analysis. 4. A closed system ..... A) Allows particles in but not out. B) Allows particles out but not in. C) Allows particles in and out. D) Doesn't allow particles in or out. Show Answer Correct Answer: D) Doesn't allow particles in or out. 5. Which of the following changes will NOT alter the value of K$_{c}$ of an equilibrium reaction?(1) Change in temperature(2) Change in pressure(3) Change in concentration A) And (2) only. B) And (3) only. C) And (3) only. D) , (2) and (3). Show Answer Correct Answer: B) And (3) only. 6. Slope of the Indifference Curve is A) Price Ratio. B) MRSxy. C) MRTxy. D) None of these. Show Answer Correct Answer: B) MRSxy. 7. For the reaction ..... N$_{2}$ + O$_{2}$ <=> 2NO:$\Delta$ H = +182 kJ mol$^{-1}$.If the temperature is increased the equilibrium position will shift ..... A) To the left. B) To the right. C) To the left and right. D) Neither left nor right. Show Answer Correct Answer: B) To the right. 8. Exothermic reactions release heat to the surroundings. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 9. Which of the following must be true when the marginal is negative? A) The average is positive. B) The average is negative. C) The total is decreasing. D) The total is negative. Show Answer Correct Answer: C) The total is decreasing. 10. In equilibrium reactions, we use the ..... as an exponent A) Molar concentration. B) Products. C) Reactants. D) Number of moles. Show Answer Correct Answer: D) Number of moles. 11. MnO2 is used as a catalyst in the decomposition of hydrogen peroxide into hydrogen gas and oxygen gas. Increasing the concentration of MnO2 would cause the equilibrium to A) Shift to the left. B) Shift to the right. C) There would be no effect. D) None of the above. Show Answer Correct Answer: C) There would be no effect. 12. An aqueous solution of CH3COONa will be A) None of these. B) Alkaline. C) Acidic. D) Neutral. Show Answer Correct Answer: B) Alkaline. 13. Dynamic Equilibrium means ..... A) Objects at rest. B) Objects moving at constant speed in a straight-line path. C) Force of friction. D) Flying in outer space. Show Answer Correct Answer: B) Objects moving at constant speed in a straight-line path. 14. The definition of a saturated solution. A) A saturated solution is one that contains the maximum concentration of solute that can be dissolved at a specific temperature and pressure. B) A saturated solution is one that has a lower concentration of solute than a supersaturated solution. C) A saturated solution is one that can dissolve any amount of solute regardless of temperature. D) A saturated solution is one that contains no solute at all. Show Answer Correct Answer: A) A saturated solution is one that contains the maximum concentration of solute that can be dissolved at a specific temperature and pressure. 15. If a population has the following genotype frequencies:AA = 0.42, Aa = 0.46, and aa = 0.12, what are the allele frequencies? A) A = 0.42, a = 0.12. B) A = 0.6, a = 0.4. C) A = 0.65, a = 0.35. D) A = 0.84, a = 0.24. Show Answer Correct Answer: C) A = 0.65, a = 0.35. 16. Define a shortage 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: B) Where quantity demanded is greater than quantity supplied. 17. Consider the equilibrium reaction:@@2NO ..... 2(g) ightleftharpoons N ..... 2O ..... 4(g) $. If the equilibrium constant $ A) $K_c = \frac{[N_2O_4]}{[NO_2]^2}$. B) $K_c = \frac{[NO_2]^2}{[N_2O_4]}$. C) $K_c = \frac{[N_2O_4]^2}{[NO_2]}$. D) $K_c = \frac{[NO_2]}{[N_2O_4]^2}$. Show Answer Correct Answer: A) $K_c = \frac{[N_2O_4]}{[NO_2]^2}$. 18. What type of reactions can able to change products back to the their original form? A) Reversible reactions. B) Irreversible reactions. C) Combustion reactions. D) Combination reactions. Show Answer Correct Answer: A) Reversible reactions. 19. A nut has been tightened by a force of 180 N using 8 cm long spanner. What length of a spanner is required to loosen the same nut with 150 N force A) 11 cm. B) 8.5 cm. C) 9.6 cm. D) 10.9 cm. Show Answer Correct Answer: C) 9.6 cm. 20. When pressure decreases, in which direction does the equilibrium shift? A) The equilibrium shifts in the direction that increases the number of moles of gas. B) The equilibrium shifts in the direction that decreases the number of moles of gas. C) The equilibrium does not shift. D) The equilibrium shifts always shifts to the right. E) The equilibrium shifts always shifts to the left. Show Answer Correct Answer: A) The equilibrium shifts in the direction that increases the number of moles of gas. 21. Heating will continue until what is reached? A) Energizers. B) Equilibrium. C) Equality. D) Energy. Show Answer Correct Answer: B) Equilibrium. 22. What is dynamic equilibrium? A) The reaction goes forward. B) The reaction goes backward. C) The rate of forward and backward reaction is equal. D) The equilibrium is dynamite. Show Answer Correct Answer: C) The rate of forward and backward reaction is equal. 23. What is the factor affecting equilibrium? A) Catalyst. B) Concentration. C) Reactant. D) Product. Show Answer Correct Answer: B) Concentration. 24. If more reactants are used in a chemical reaction, more products will be produced. This is because A) More reactants cause the reaction to heat up. B) More reactants take up the same volume. C) More reactants have more atoms to react to form more products. D) Too many products can slow down the reaction. Show Answer Correct Answer: C) More reactants have more atoms to react to form more products. 25. What is the equilibrium? A) Change of velocity. B) When all the forces that act upon an object are balanced. C) When the net force is not zero. D) None. Show Answer Correct Answer: B) When all the forces that act upon an object are balanced. ← 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