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Science
Catalyst And Catalysis
Quiz 2
Solution
Q.1.
Does the catalyst change the position of equilibrium?
Yes
No
Q.2.
A catalyst is __________-specific
Radioactive
Reactive
Reaction
None of these
Q.3.
Enzymes in your body probably work best at which of the following temperatures>
25oC
37oC
98oC
100oC
Q.4.
What is the name given to a catalyst in the human body?
Saliva
Lipid
Enzyme
Catalyst
Q.5.
A ______________ is a substance that increases the rate of a reaction without being used up during the reaction.
catalyst
reactant
product
solute
Q.6.
Catalysts may be in the state of ___________.
Solid and liquid only
Liquid and gases only
Solid and gases only
Solid, liquid or gases
Q.7.
What happen to the rate of reaction when a catalyst is added to it?
Increases
Decreases
Nothing changes
All of above
Q.8.
What do you call the energy that is required to start a reaction?
Alternative energy
Activation energy
Atmospheric energy
None of these
Q.9.
What does catalyst do to a reaction?
Slows down the reaction
Nothing changes
Speeds up the reaction
All of above
Q.10.
How does a catalyst work in speeding up a reaction?
By lowering the activation energy or reaction
by giving them more energy
by making them more available
All of above
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