Rate Constant and its Units NEET Questions

Physical Chemistry - Chemical Kinetics

Rate Constant and its Units MCQ Questions


1.
The unit of rate constant for a zero-order reaction is
A.
s⁻¹
B.
mol L⁻¹ s⁻¹
C.
L mol⁻¹ s⁻¹
D.
L² mol⁻² s⁻¹
😑 View Answer Rough Work Error
ANSWER :
B. mol L⁻¹ s⁻¹
2.
For a first-order reaction, the unit of rate constant is
A.
s⁻¹
B.
mol L⁻¹ s⁻¹
C.
L mol⁻¹ s⁻¹
D.
L² mol⁻² s⁻¹
😑 View Answer Rough Work Error
ANSWER :
A. s⁻¹
3.
For a second-order reaction, the unit of rate constant is
A.
s⁻¹
B.
L mol⁻¹ s⁻¹
C.
mol L⁻¹ s⁻¹
D.
L² mol⁻² s⁻¹
😑 View Answer Rough Work Error
ANSWER :
B. L mol⁻¹ s⁻¹
4.
Which of the following affects the numerical value of the rate constant?
A.
Concentration
B.
Temperature
C.
Volume
D.
Time
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ANSWER :
B. Temperature
5.
Unit of rate constant depends upon
A.
the rate of reaction
B.
the temperature
C.
the order of reaction
D.
the molecularity of reaction
😑 View Answer Rough Work Error
ANSWER :
C. the order of reaction
6.
For a third-order reaction, the unit of rate constant is
A.
L mol⁻¹ s⁻¹
B.
s⁻¹
C.
L² mol⁻² s⁻¹
D.
mol L⁻¹ s⁻¹
😑 View Answer Rough Work Error
ANSWER :
C. L² mol⁻² s⁻¹