Collision Theory of Bimolecular Gaseous Reactions NEET Questions

Physical Chemistry - Chemical Kinetics

Collision Theory of Bimolecular Gaseous Reactions MCQ Questions


13.
Which increases the fraction of effective collisions?
A.
Decrease in activation energy
B.
Increase in molecular mass
C.
Increase in volume
D.
Decrease in temperature
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ANSWER :
A. Decrease in activation energy
14.
Activation energy and proper orientation are both required for
A.
Catalysis
B.
Effective collisions
C.
Energy distribution
D.
Equilibrium reactions
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ANSWER :
B. Effective collisions
15.
The term ‘effective collision’ implies
A.
Collision with highest speed
B.
Collision with product formation
C.
Collision with largest molecules
D.
Collision with change in color
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ANSWER :
B. Collision with product formation
16.
Which assumption is not part of collision theory?
A.
Molecules are spherical
B.
Molecules have constant energy
C.
Molecules move randomly
D.
Molecules must collide to react
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ANSWER :
B. Molecules have constant energy
17.
Rate constant in collision theory is proportional to
A.
e^(-Ea/RT)
B.
1/T
C.
T²
D.
P⁻¹
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ANSWER :
A. e^(-Ea/RT)
18.
The orientation factor in gaseous reactions is also called
A.
Frequency factor
B.
Threshold energy
C.
Activation probability
D.
Steric factor
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ANSWER :
D. Steric factor