Chemical Kinetics Test

Result

Chemical Kinetics Test - 17

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
4 / -1

In the first order reaction the concentration of the reactants is reduced to 25% in one hour. The half life period of the reaction is ...

A
120 min

B
4 hr

C
30 min

D
15 min

Solution
Question 2
4 / -1

For the First order reaction with half life is 150 seconds, the time taken for the concentration of the reactant to fall from m/10 to m/100 will be approximately

A
600 s

B
900 s

C
500 s

D
1500 s

Solution
Question 3
4 / -1

The half life period of a first order reaction is 15 minutes. The amount of substance left after one hour will be ...

A

B

C

D

Solution
Question 4
4 / -1

The minimum amount of energy required for the reacting molecules to undergo reaction is called :

A
potential energy

B
internal energy

C
activation energy

D
threshold energy
Question 5
4 / -1

Increase in the concentration of the reactants leads to the change in

A
heat of reaction

B
threshold energy

C
collision energy

D
activation energy
Question 6
4 / -1

Energy of activation of an exothermic reaction is

A
zero

B
negative

C
positive

D
can not be predicated
Question 7
4 / -1

The chemical reactions in which reactants require high amount of activation energy are generally ................

A
slow

B
fast

C
instantaneous

D
spontaneous
Question 8
4 / -1

The rate of reaction increases with increase of temperature because ...

A
an increase in the number of activated molecules

B
an increase in the number of collisions

C
lowering of threshold energy

D
activation energy is lowered
Question 9
4 / -1

The activation energy of reaction is equal to

A
Threshold energy + Energy of the products

B
Threshold energy - Energy of the reactants

C
Threshold energy + Energy of the reactants

D
Threshold energy - Energy of the products
Question 10
4 / -1

Collision theory is most satisfactory for ___________ reaction.

A
First order

B
second order

C
Bimolecular

D
Any