Here we will provide you the 50+ MCQ Questions of Equilibrium for NEET-UG. Equilibrium is the chapter 7 in Class XI or Class 11 Chemistry NCERT Unit Equilibrium NEET (conducted by NTA) is based on the NCERT book.
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Equilibrium NEET MCQ
Which of the following statements is true regarding Le Chatelier’s principle?
a) Le Chatelier’s principle applies only to reactions that are at equilibrium.
b) Le Chatelier’s principle predicts the direction in which the equilibrium will shift in response to a change in conditions.
c) Le Chatelier’s principle predicts the rate at which the equilibrium will shift in response to a change in conditions.
d) Le Chatelier’s principle is not applicable to reactions involving gases.
The equilibrium constant (Kc) for the reaction A(g) + B(g) ⇌ 2C(g) is 4.0 x 10^-3 at a certain temperature. If the initial concentrations of A, B, and C are 0.10 M, 0.20 M, and 0.0 M, respectively, what is the equilibrium concentration of C?
a) 0.02 M
b) 0.04 M
c) 0.08 M
d) 0.16 M
The equilibrium constant (Kc) for the reaction N2(g) + 3H2(g) ⇌ 2NH3(g) is 4.0 x 10^3 at a certain temperature. If the initial concentrations of N2 and H2 are both 0.10 M, and the initial concentration of NH3 is 0.0 M, what is the equilibrium concentration of NH3?
a) 0.02 M
b) 0.04 M
c) 0.08 M
d) 0.16 M
Which of the following statements is true regarding the reaction quotient (Qc) for a chemical reaction?
a) Qc is always equal to the equilibrium constant (Kc) for a reaction.
b) Qc can be used to predict the direction in which the equilibrium will shift in response to a change in conditions.
c) Qc is always equal to the initial concentration of the products divided by the initial concentration of the reactants.
d) Qc is always equal to the final concentration of the products divided by the final concentration of the reactants.
The equilibrium constant (Kc) for the reaction CO(g) + 2H2(g) ⇌ CH3OH(g) is 2.5 x 10^3 at a certain temperature. If the initial concentration of CO is 0.10 M and the initial concentration of H2 is 0.20 M, what is the equilibrium concentration of CH3OH?
a) 0.03 M
b) 0.06 M
c) 0.10 M
d) 0.20 M
Which of the following factors will increase the value of the equilibrium constant (Kc) for a chemical reaction?
a) Increasing the temperature of the system.
b) Adding a catalyst to the system.
c) Adding an inert gas to the system at constant volume.
d) Removing a reactant from the system.
The equilibrium constant (Kc) for the reaction H2(g) + I2(g) ⇌ 2HI(g) is 50.0 at a certain temperature. If the initial concentration of H2 is 0.10 M and the initial concentration of I2 is 0.20 M, what is the equilibrium concentration of HI?
a) 0.02 M
b) 0.04 M
c) 0.08 M
d) 0.16 M
Which of the following statements is true regarding the relationship between ΔG° and Kc for a chemical reaction?
a) ΔG° is directly proportional to Kc.
b) ΔG° is inversely proportional to Kc.
c) ΔG° and Kc have no relationship.
d) ΔG° is equal to Kc.
The equilibrium constant (Kc) for the reaction N2(g) + 3H2(g) ⇌ 2NH3(g) is 1.2 x 10^3 at a certain temperature. If the initial concentration of NH3 is 0.10 M and the initial concentration of N2 is 0.20 M, what is the equilibrium concentration of H2?
a) 0.02 M
b) 0.04 M
c) 0.08 M
d) 0.16 M
Which of the following statements is true regarding a system at equilibrium?
a) The rates of the forward and reverse reactions are equal.
b) The concentrations of the reactants and products are equal.
c) The system is in a state of dynamic equilibrium.
d) All of the above are true.
The equilibrium constant (Kc) for the reaction N2O4(g) ⇌ 2NO2(g) is 4.6 x 10^-3 at a certain temperature. If the initial concentration of N2O4 is 0.10 M, what is the equilibrium concentration of NO2?
a) 0.23 M
b) 0.46 M
c) 0.69 M
d) 0.92 M
Which of the following factors will decrease the value of the equilibrium constant (Kc) for a chemical reaction?
a) Increasing the temperature of the system.
b) Adding a reactant to the system.
c) Removing a product from the system.
d) Adding an inert gas to the system at constant pressure.
The equilibrium constant (Kc) for the reaction 2NO2(g) ⇌ N2O4(g) is 1.5 x 10^2 at a certain temperature. If the initial concentration of N2O4 is 0.10 M, what is the equilibrium concentration of NO2?
a) 0.38 M
b) 0.57 M
c) 0.76 M
d) 0.95 M
Which of the following statements is true about the equilibrium constant, Kc?
a) Kc is dependent on the initial concentrations of the reactants and products
b) Kc can change with temperature
c) Kc is the same for both the forward and reverse reactions
d) Kc is always greater than 1
Which of the following factors can affect the position of equilibrium in a chemical reaction?
a) Pressure
b) Catalysts
c) Concentration of reactants and products
d) All of the above
What is the relationship between the rate of a reaction and the equilibrium constant, Kc?
a) They are directly proportional
b) They are inversely proportional
c) There is no relationship between them
d) It depends on the specific reaction
Which of the following statements is true about Le Chatelier’s principle?
a) It predicts the direction in which the equilibrium position will shift in response to a change in concentration, pressure, or temperature
b) It only applies to homogeneous reactions
c) It states that the equilibrium constant, Kc, will always decrease with increasing temperature
d) It cannot be used to predict the effect of a catalyst on the equilibrium position
The equilibrium constant, Kc, for the reaction A + B ⇌ C is 3.2 x 10^-4 at 25°C. Which of the following statements is true?
a) The forward reaction is favored at equilibrium
b) The reverse reaction is favored at equilibrium
c) There is no net change in the concentrations of A, B, and C at equilibrium
d) The equilibrium constant, Kc, cannot be determined from this information alone
Which of the following statements is true about the equilibrium constant, Kc?
a) It is a measure of the reaction rate
b) It is dependent on the temperature and pressure of the system
c) It is always equal to 1
d) It can be used to predict the spontaneity of a reaction
The equilibrium constant, Kc, for the reaction 2NO2(g) ⇌ N2O4(g) is 4.63 x 10^-3 at a certain temperature. Which of the following statements is true?
a) The reaction is exothermic
b) The reaction is endothermic
c) The concentration of NO2(g) is higher than that of N2O4(g) at equilibrium
d) The concentration of N2O4(g) is higher than that of NO2(g) at equilibrium
Which of the following statements is true about a reaction at equilibrium?
a) The reaction has stopped
b) The rates of the forward and reverse reactions are equal
c) The reaction is irreversible
d) The equilibrium constant, Kc, is equal to the rate constant, k
Which of the following factors can affect the equilibrium constant, Kc?
a) Temperature
b) Pressure
c) Concentration of reactants and products
d) All of the above
Which of the following statements is true about Le Chatelier’s principle?
a) It can be used to predict the effect of a catalyst on the equilibrium position
b) It states that the equilibrium constant, Kc, will always increase with increasing temperature
c) It can only be applied to reactions that are in a state of dynamic equilibrium
d) It predicts the direction in which the equilibrium position will shift in response to a change in concentration, pressure, or temperature
The equilibrium constant, Kc, for the reaction N2(g) + 3H2(g) ⇌ 2NH3(g) is 6.4 x 10^5 at 25°C. What is the equilibrium constant, Kc, for the reaction 2NH3(g) ⇌ N2(g) + 3H2(g)?
a) 1.6 x 10^-6
b) 3.9 x 10^11
c) 1.6 x 10^6
d) 3.9 x 10^-11
Which of the following statements is true about the reaction quotient, Qc?
a) It is always equal to the equilibrium constant, Kc
b) It is a measure of the progress of the reaction towards equilibrium
c) It can only be calculated for reactions that are in a state of dynamic equilibrium
d) It is a measure of the concentration of the products divided by the concentration of the reactants
Which of the following statements is true about the law of mass action?
a) It only applies to reactions that are in a state of dynamic equilibrium
b) It states that the rate of a chemical reaction is proportional to the concentration of the reactants
c) It can be used to determine the equilibrium constant, Kc, for a reaction
d) It predicts the direction in which the equilibrium position will shift in response to a change in concentration, pressure, or temperature
The equilibrium constant, Kc, for the reaction A ⇌ B + C is 0.25 at a certain temperature. If the initial concentration of A is 0.10 M, what is the equilibrium concentration of A?
a) 0.025 M
b) 0.050 M
c) 0.075 M
d) 0.10 M
Which of the following statements is true about a reaction that is at equilibrium?
a) The reaction has stopped
b) The concentrations of the reactants and products are equal
c) The rates of the forward and reverse reactions are equal
d) The reaction is irreversible
Which of the following factors can affect the equilibrium position of a reaction?
a) Temperature
b) Pressure
c) Concentration of reactants and products
d) All of the above
The equilibrium constant, Kc, for the reaction N2(g) + 3H2(g) ⇌ 2NH3(g) is 1.6 x 10^5 at a certain temperature. If the initial concentration of N2 is 0.20 M, what is the equilibrium concentration of NH3?
a) 0.10 M
b) 0.20 M
c) 0.30 M
d) 0.40 M
Which of the following statements is true about a reaction that is at equilibrium?
a) The reaction rate is zero
b) The concentration of the reactants is higher than that of the products
c) The equilibrium constant, Kc, is equal to the rate constant, k
d) The reaction is irreversible
Which of the following statements is true about the effect of a catalyst on the equilibrium position?
a) A catalyst has no effect on the equilibrium position
b) A catalyst will always shift the equilibrium position towards the products
c) A catalyst will always shift the equilibrium position towards the reactants
d) The effect of a catalyst on the equilibrium position depends on the specific reaction and conditions
The equilibrium constant, Kc, for the reaction CO(g) + H2O(g) ⇌ CO2(g) + H2(g) is 3.3 x 10^-2 at a certain temperature. If the initial concentrations of CO and H2O are both 0.10 M, what is the equilibrium concentration of CO2?
a) 0.055 M
b) 0.077 M
c) 0.088 M
d) 0.12 M
We hope there NEET MCQ of Class 11 Equilibrium will help you to score an excellent rank in NEET-UG. If you have any queries feel free to write in the comments section. We at Study Rate are always ready to serve our students
