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


7.
If equilibrium constant for the reaction H2 + I2 ⇌ 2HI is K, then for ½H2 + ½I2 ⇌ HI, the constant is:
A.
K²
B.
K
C.
1/K
D.
√K (K^1/2)
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ANSWER :
D. √K (K^1/2)
8.
If for reaction A → B, K1 = 4; and for B → C, K2 = 5; then for A → C, K is:
A.
9
B.
20
C.
1.25
D.
0.05
😑 View Answer Rough Work Error
ANSWER :
B. 20
9.
Which statement about equilibrium constant is FALSE?
A.
Kc gives information about the rate of reaction
B.
Kc is independent of initial concentrations
C.
Kc depends on temperature
D.
Kc is constant for a given reaction at constant T
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ANSWER :
A. Kc gives information about the rate of reaction
10.
If a reaction has a very large equilibrium constant (Kc > 10³), it means:
A.
Reaction is very slow
B.
Reactants predominate at equilibrium
C.
Products predominate at equilibrium (reaction nearly complete)
D.
The reaction is at equilibrium initially
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ANSWER :
C. Products predominate at equilibrium (reaction nearly complete)
11.
If Kc << 10⁻³, then at equilibrium:
A.
Equal amounts of reactants and products
B.
Reaction is fast
C.
Products predominate
D.
Reactants predominate (reaction barely proceeds)
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ANSWER :
D. Reactants predominate (reaction barely proceeds)
12.
The relationship between Kp and Kc is given by:
A.
Kp = Kc × R
B.
Kp = Kc(RT)^Δn
C.
Kp = Kc × T
D.
Kp = Kc / (RT)^Δn
😑 View Answer Rough Work Error
ANSWER :
B. Kp = Kc(RT)^Δn