The Concept of Dynamic Equilibrium NEET Questions

Physical Chemistry - Equilibrium

The Concept of Dynamic Equilibrium MCQ Questions


13.
Which of the following is NOT a characteristic of dynamic equilibrium?
A.
Reactions continue at equal rates
B.
Macroscopic properties remain unchanged
C.
Reactants and products stop reacting
D.
Equilibrium can be disturbed by external changes
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ANSWER :
C. Reactants and products stop reacting
14.
What happens when more reactant is added to a system at equilibrium?

NEET - 2016

A.
Equilibrium shifts toward products
B.
Equilibrium shifts toward reactants
C.
Equilibrium constant changes
D.
Reaction stops
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ANSWER :
A. Equilibrium shifts toward products
15.
If an inert gas is added to a reaction at equilibrium at constant volume, what happens?
A.
Equilibrium shifts toward products
B.
Equilibrium shifts toward reactants
C.
No effect on equilibrium
D.
Equilibrium constant changes
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ANSWER :
C. No effect on equilibrium
16.
Le Chatelier’s principle states that
A.
A system at equilibrium opposes external changes
B.
A system at equilibrium remains unaffected
C.
A system always favors the forward reaction
D.
Equilibrium cannot be disturbed
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ANSWER :
A. A system at equilibrium opposes external changes
17.
When a reaction is at equilibrium, the rate of formation of reactants is
A.
Zero
B.
Equal to the rate of product formation
C.
Greater than the rate of product formation
D.
Less than the rate of product formation
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ANSWER :
B. Equal to the rate of product formation
18.
If the equilibrium constant (K) is very large, the reaction favors
A.
Reactants
B.
Products
C.
Neither reactants nor products
D.
Both reactants and products
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ANSWER :
B. Products