Chemical equilibrium MCQs

Question:

The value of Kc increases when:

A: [Product] is less

B: [Reactant] is more

C: [Product] is more

D: [Reactant] = [Product]

Answer: C

Answer

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salman bin arif

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Question:

A gaseous equilibrium having Kc = Kp proceeds with:

A: Increasing volume of product

B: Decreasing volume of product

C: Increasing volume of reactant

D: No change in volume

Answer: D

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salman bin arif

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Question:

The reaction of carboxylic acid with alcohol to form ester and water is called:

A: Neutralization

B: Hydrolysis

C: Esterification

D: Equilibrium state

Answer: C

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salman bin arif

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Question:

The equilibrium mixture contains:

A: Reactant only

B: Product only

C: Both reactant and products

D: No product at all

Answer: C

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salman bin arif

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Question:

If a positive catalyst is added in a reaction, its Kc:

A: Increases

B: Decreases

C: does not change

D: both a and b

Answer: C

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salman bin arif

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Question:

The rate constant (Kc) is a ratio of the two:

A: Rate constants

B: Equilibrium constant

C: Rates

D: [Reactant] / [Product]

Answer: A

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salman bin arif

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Question:

The rate of forward reaction in an exothermic reaction will increase on:

A: Increasing termperature

B: Decreasing pressure

C: Decreasing temperature

D: Increasing pressure

Answer: C

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salman bin arif

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Question:

If a ratio of concentrations of product to reactant at initial state, is less than kc; the reaction moves in:

A: Reverse direction

B: forward direction

C: both directions equally

D: None of these

Answer: B

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salman bin arif

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Question:

A solution in which more solute can be added at room temperature is called:

A: Saturated soln

B: Unsaturated soln

C: Collidal soln

D: Supersaturated soln

Answer: B

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salman bin arif

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Question:

Solubility divided by molecular mass is equal to:

A: Concentration

B: Ksp

C: Kc

D: Kp

Answer: A

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salman bin arif

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Question:

The number of moles of a substance in litre is called its

A: Molar concentration

B: Active weight

C: Composition

D: Active concentration

Answer: A

Answer

Submitted By:

Zaheer ahmed

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11th Class Chemistry Chapter Chemical Equilibrium MCQs:

Sindh -> 11th Class -> Chemistry -> Chemical Equilibrium

The value of Kc increases when:

A gaseous equilibrium having Kc = Kp proceeds with:

The reaction of carboxylic acid with alcohol to form ester and water is called:

The equilibrium mixture contains:

If a positive catalyst is added in a reaction, its Kc:

The rate constant (Kc) is a ratio of the two:

The rate of forward reaction in an exothermic reaction will increase on:

If a ratio of concentrations of product to reactant at initial state, is less than kc; the reaction moves in:

A solution in which more solute can be added at room temperature is called:

Solubility divided by molecular mass is equal to:

The number of moles of a substance in litre is called its