More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
ECAT Chemistry Chapter 11 Reaction Kinetics Online Test MCQs With Answers
Question # 1
The rate of reaction determined at a given time is called
Choose an answer
Average rate
Instantaneous rate
Specific rate
Overall rate
Previous
Skip
Next
Question # 2
When initial concentration of reactants an order of reaction is given, then its half life period can be calculated by the equation
Choose an answer
Previous
Skip
Next
Question # 3
For a chemical reaction to take place the particles must have sufficient energy for the effective collisions, the energy is called
Choose an answer
Average energy
Activation energy
Potential energy
Collision energy
Previous
Skip
Next
Question # 4
Dilatometric method is used for rate determination when
Choose an answer
Reactions involving change of optical
Reactions involving change of optical activity
Reactions involving small volume change
None of above
Previous
Skip
Next
Question # 5
Which one of the following reaction rate is effected by the light
Choose an answer
Previous
Skip
Next
Question # 6
The rate of reaction is denoted by
Choose an answer
dc/dp
dc/ac
dc/dT
dc/dt
Previous
Skip
Next
Question # 7
Hydrolysis of ethyl-acetate (ester) has order of reaction :
Choose an answer
3
2
1
1
Previous
Skip
Next
Question # 8
The unit of rate of reaction is
Choose an answer
mole dm
-3
mole Kg
-1
moles dm
-3
sec
-1
grams dm
-3
Previous
Skip
Next
Question # 9
The effective activity of a metal catalyst is increased if it is in
Choose an answer
Solid form
Liquid state
Gaseous state
Finely divided form
Previous
Skip
Next
Question # 10
Choose an answer
Three times
Six times
Nine times
Two times
Previous
Skip
Next
Question # 11
If the rate equation of a reaction 2A+B-------->Products is , Rate = K[A] [B], and A is present in large excess, then order of reaction is :
Choose an answer
1
2
3
Above
Previous
Skip
Next
Question # 12
Rate law of an equation is obtained :
Choose an answer
From a balance equation.
Can be calculated theoretically as well as determined experimentally.
It is only calculated theoretically.
Experimentally.
Previous
Skip
Next
Question # 13
In the reaction of oxalic acid with KMnO
4
and H
2
SO
4
is slow at the beginning but after sometimes the reaction becomes faster due to
Choose an answer
Formation of MnSO
4
which acts as 'Auto catalyst
Formation of CO
2
which acts as 'Auto catalyst
Formation of K
2
SO
4
which acts as 'Auto catalyst
Evolution of O
2
gas which acts as 'Auto catalyst
Previous
Skip
Next
Question # 14
The addition of a catalyst to a reaction changes the
Choose an answer
Enthalpy
Entropy
Nature of reactants
Energy of activation
Previous
Skip
Next
Question # 15
Refrectrometric method is used when
Choose an answer
Reactions involving absorption of I.R. or U. V
Reactions involving change of refractive index
Reactions involving ions
Change of optical activity
Previous
Skip
Next
Question # 16
Group l-A elements react with water fastly than the reaction of group ll-A elements because
Choose an answer
l
A
elements are more soft then ll
A
l
A
elements are non-metals
l
A
elements have 1 electron in their outermost s-orbital and are strongly electropositive
l
A
elements make ionic bond
Previous
Skip
Next
Question # 17
Half life period of a reaction is inversely proportion to the initial concentration of the reactant, then order of reaction is
Choose an answer
Third order
Second order
Fist order
Zero order
Previous
Skip
Next
Question # 18
Choose an answer
1st order
2nd order
Zero order
3rd order
Previous
Skip
Next
Question # 19
The factor which effect the rate of reaction
Choose an answer
Nature of reactants
Surface area
Light
All of the above
Previous
Skip
Next
Question # 20
Choose an answer
Measuring pH
Measuring density
Titration against standard NaOH
Titration against standard KMnO
4
solution
Previous
Skip
Next
Question # 21
If half life period of a reaction is independent of the concentration of the reactants, then the reaction is
Choose an answer
Zero order
First order
Second order
Order is in fraction
Previous
Skip
Next
Question # 22
Choose an answer
First order
Pseudo first order
Second order
Zero order
Previous
Skip
Next
Question # 23
The example of a photo chemical reaction is photosynthesis has order of reaction :
Choose an answer
1
2
0
3
Previous
Skip
Next
Back