Collision Theory of Bimolecular Gaseous Reactions NEET Questions

Physical Chemistry - Chemical Kinetics

Collision Theory of Bimolecular Gaseous Reactions MCQ Questions


7.
What is the major limitation of collision theory?
A.
It applies only to heterogeneous reactions
B.
It ignores molecular orientation
C.
It overestimates the rate
D.
It requires a catalyst
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ANSWER :
B. It ignores molecular orientation
8.
Which of the following is true for collision theory?
A.
All collisions lead to product
B.
Only effective collisions lead to product
C.
Only slow collisions are effective
D.
Temperature doesnā€™t affect collisions
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ANSWER :
B. Only effective collisions lead to product
9.
What is the unit of collision frequency in bimolecular reactions?
A.
molā»Ā¹Ā·LĀ·sā»Ā¹
B.
LĀ·molā»Ā¹Ā·sā»Ā¹
C.
sā»Ā¹
D.
molĀ·Lā»Ā¹Ā·sā»Ā¹
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ANSWER :
D. molĀ·Lā»Ā¹Ā·sā»Ā¹
10.
Which equation modifies collision theory to include steric factor?
A.
Arrhenius equation
B.
Vanā€™t Hoff equation
C.
Rate law
D.
Integrated rate equation
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ANSWER :
A. Arrhenius equation
11.
The steric factor accounts for
A.
Temperature effect
B.
Activation energy
C.
Proper molecular orientation
D.
Catalyst effect
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ANSWER :
C. Proper molecular orientation
12.
What is the main cause of ineffective collisions in gases?
A.
Low kinetic energy
B.
High temperature
C.
Improper orientation
D.
Low collision frequency
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ANSWER :
C. Improper orientation