
Chemistry Quiz: Reaction Kinetics

Quiz
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Professional Development
•
University
•
Medium
Karnam Bharath
Used 2+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the general form of a second-order rate law?
Rate = k[A]²
Rate = k[A][B]
Both a and b
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a reaction mechanism, what does the molecularity of an elementary step indicate?
The number of molecules involved in the step
The overall reaction order
The activation energy
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does increasing temperature affect the reaction rate?
Increases due to more collisions with sufficient energy
Decreases due to higher activation energy
Remains unchanged
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the activation complex in a reaction?
The intermediate stable product
A short-lived high-energy transition state
The final product
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which factor affects reaction rate according to the Arrhenius equation?
Activation energy
Atomic radius
Molecular weight
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a catalyst's role in a reaction?
Lowers activation energy
Increases reactant concentration
Changes the reaction equilibrium
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which type of catalyst works within biological systems?
Heterogeneous catalyst
Enzyme
Metal oxide
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