In Class 11 Final Exams there will be Case studies and Passage Based Questions will be asked, So practice these types of questions. Study Rate is always there to help you. Free PDF Downloads of CBSE Class 11 Chemistry Chapter 7 Case Study and Passage-Based Questions with Answers were Prepared Based on the Latest Exam Pattern. Students can solve Class 11 Chemistry Case Study Questions Equilibrium to know their preparation level.
Join our Telegram Channel, there you will get various e-books for CBSE 2024 Boards exams for Class 9th, 10th, 11th, and 12th.
In CBSE Class 11 Chemistry Paper, There will be a few questions based on case studies and passage-based as well. In that, a paragraph will be given, and then the MCQ questions based on it will be asked.
Equilibrium Case Study Questions With Answers
Here, we have provided case-based/passage-based questions for Class 11 Chemistry Chapter 7 Equilibrium
Case Study/Passage-Based Questions
Case Study 1: Le Chatelier’s principle is also known as the equilibrium law, used to predict the effect of change on a system at chemical equilibrium. This principle states that equilibrium adjusts the forward and backward reactions in such a way as to accept the change affecting the equilibrium condition. When factor-like concentration, pressure, temperature, and inert gas that affect equilibrium are changed, the equilibrium will shift in that direction where the effects caused by these changes are nullified. This principle is also used to manipulate reversible reactions in order to obtain suitable outcomes.
Which one of the following conditions will favor the maximum formation of the product in the reaction ?
(a) Low temperature and high pressure
(b) Low temperature and low pressure
(c) High temperature and high pressure
(d) High temperature and low pressure
Answer: (a) Low temperature and high pressure
For the reversible reaction,
The equilibrium shifts in forwarding direction
(a) by increasing the concentration of NH3(g)
(b) by decreasing the pressure
(c) by decreasing the concentrations of N2(g) and H2(g)
(d) by increasing pressure and decreasing temperature.
Answer: (d) by increasing pressure and decreasing temperature.
Favourable conditions for manufacture of ammonia by the reaction,
(a) low temperature, low pressure and catalyst
(b) low temperature, high pressure and catalyst
(c) high temperature, low pressure and catalyst
(d) high temperature, high pressure and catalyst
Answer: (b) low temperature, high pressure and catalyst.
For the above equilibrium, the reactant concentration is doubled, what would happen then to equilibrium constant?
(a) Remains constant
(b) Be doubled
(c) Be halved
(d) Cannot be predicted
Answer: (a) Remains constant
In which one of the following equilibria will the point of equilibrium shift to left when the pressure of the system is increased?
Answer: (b)
Case Study 2: Reactants and products coexist at equilibrium so that the conversion of reactants to products is always less than 100%. Equilibrium reaction may involve the decomposition of a covalent (nonpolar) reactant or ionization of ionic compounds into their ions in polar solvents. Ostwald dilution law is the application of the law of mass action to the weak electrolytes in solution.
A binary electrolyte AB dissociates into A+ and B– ions i.e.
for every weak electrolyte, Since α <<1 (1 – α) = 1
What does equilibrium in a chemical reaction mean?
A) Only reactants are present.
B) Only products are present.
C) Reactants are completely converted into products.
D) Reactants and products coexist.
Answer: D
What percentage of reactant conversion to products occurs in an equilibrium reaction?
A) 0%
B) 50%
C) 100%
D) Less than 100%
Answer: D
Which types of reactions may reach equilibrium?
A) Only the decomposition of a covalent reactant.
B) Only the ionization of ionic compounds.
C) Both the decomposition of a covalent reactant and ionization of ionic compounds.
D) Neither the decomposition of a covalent reactant nor ionization of ionic compounds.
Answer: C
What does Ostwald’s dilution law apply to?
A) Only strong electrolytes in solution.
B) Only weak electrolytes in solution.
C) Both strong and weak electrolytes in solution.
D) Neither strong nor weak electrolytes in solution.
Answer: B
In the dissociation of a binary electrolyte AB into A+ and B– ions, what is true about α if it represents the degree of dissociation of a weak electrolyte?
A) α = 1
B) α >> 1
C) α << 1
D) α = 0
Answer: C
Hope the information shed above regarding Case Study and Passage Based Questions for Class 11 Chemistry Chapter 7 Equilibrium with Answers Pdf free download has been useful to an extent. If you have any other queries about CBSE Class 11 Chemistry Equilibrium Case Study and Passage-Based Questions with Answers, feel free to comment below so that we can revert back to us at the earliest possible.
By Team Study Rate
