Equilibrium NDA Questions

NDA Chemistry

Equilibrium MCQ Questions


1.

The pH of a 10-10 M NaOH solution is nearest to _________

A.

-4

B.

4

C.

14

D.

21

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ANSWER :

B. 4

2.
The equilibrium constant (K) depends on__________
A.
Temperature
B.
Concentration of reactants
C.
Pressure of reactants
D.
Catalyst used
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ANSWER :
A. Temperature
3.
If the concentration of products is greater than that of reactants at equilibrium, the reaction is__________
A.
At equilibrium
B.
Incomplete
C.
Shifted to the left
D.
Shifted to the right
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ANSWER :
D. Shifted to the right
4.
At equilibrium, the rate of the forward reaction is__________
A.
Zero
B.
Constant but non-zero
C.
Equal to the rate of the reverse reaction
D.
Greater than the reverse reaction
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ANSWER :
C. Equal to the rate of the reverse reaction
5.
The reaction quotient (Q) is equal to the equilibrium constant (K) when the system is__________
A.
At equilibrium
B.
Not at equilibrium
C.
In a dynamic state
D.
None of the above
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ANSWER :
A. At equilibrium
6.
Which of the following is true for a system at equilibrium?
A.
The concentrations of reactants and products remain constant
B.
The reaction stops
C.
The forward and reverse reactions cease
D.
The temperature remains constant
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ANSWER :
A. The concentrations of reactants and products remain constant