Equilibrium Involving Chemical Processes (Law of Chemical Equilibrium, Equilibrium Constants,...) NEET Questions

Physical Chemistry - Equilibrium

Equilibrium Involving Chemical Processes (Law of Chemical Equilibrium, Equilibrium Constants,...) MCQ Questions


13.
What is the effect of adding more reactants to a reaction at equilibrium?
A.
Shifts equilibrium toward reactants
B.
Shifts equilibrium toward products
C.
No effect
D.
Decreases reaction rate
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ANSWER :
B. Shifts equilibrium toward products
14.
For the reaction 2SO₂(g) + O₂(g) ⇌ 2SO₃(g), the effect of decreasing volume will:

NEET - 2021

A.
Shift equilibrium to the right
B.
Shift equilibrium to the left
C.
Increase Kc
D.
Decrease Kc
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ANSWER :
A. Shift equilibrium to the right
15.
If ΔG° < 0 for a reaction, the equilibrium constant (K) will be
A.
>1
B.
<1
C.
1
D.
0
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ANSWER :
A. >1
16.
For a reaction where ΔH > 0, increasing temperature will
A.
Shift equilibrium toward products
B.
Shift equilibrium toward reactants
C.
Have no effect
D.
Decrease reaction rate
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ANSWER :
A. Shift equilibrium toward products
17.
What happens to equilibrium when a catalyst is added?
A.
Shifts towards reactants
B.
Shifts towards products
C.
No shift, only rate increases
D.
Equilibrium constant increases
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ANSWER :
C. No shift, only rate increases
18.
In the equilibrium N₂O₄(g) ⇌ 2NO₂(g), the brown color of NO₂ becomes lighter upon cooling because:

NEET - 2017

A.
Equilibrium shifts to the right
B.
Equilibrium shifts to the left
C.
Equilibrium constant increases
D.
Equilibrium constant remains unchanged
😑 View Answer Rough Work Error
ANSWER :
B. Equilibrium shifts to the left