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# CBSE TEST PAPER-03 CLASS - XII CHEMISTRY (Chemical Kinetics), CBSE Class 12 Notes | EduRev

## Class 12 : CBSE TEST PAPER-03 CLASS - XII CHEMISTRY (Chemical Kinetics), CBSE Class 12 Notes | EduRev

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CBSE TEST PAPER-03
CLASS - XII CHEMISTRY (Chemical Kinetics)
Topic: -Determination of order of a reaction.
1. Identify the reaction order for from each of the following rate constant –
a) k = 2.3 ×10
-5
L mol-1 s
-1
b) k = 3.1 × 10
-4
s
-1

2. Consider the equation 2 NO (q) + 2H 2 (g) ? N 2 (g) + 2H 2O (g)
The rate law for this equation is first order with respect to H 2 and second
order with respect to NO. write the rate law for this reaction. 
3. The rate Law for the reaction A+B ? C is rate = K [A]
2
[B] . What would the
reaction rate be when concentration of both  A and B are doubled? 
4. Write the integrated rate equation for –
i) zero order reaction.
ii) first order reaction. 
5. From the graph below 
i) Identify the order of reaction.
ii) What will be the unit of rate constant?
Page 2

CBSE TEST PAPER-03
CLASS - XII CHEMISTRY (Chemical Kinetics)
Topic: -Determination of order of a reaction.
1. Identify the reaction order for from each of the following rate constant –
a) k = 2.3 ×10
-5
L mol-1 s
-1
b) k = 3.1 × 10
-4
s
-1

2. Consider the equation 2 NO (q) + 2H 2 (g) ? N 2 (g) + 2H 2O (g)
The rate law for this equation is first order with respect to H 2 and second
order with respect to NO. write the rate law for this reaction. 
3. The rate Law for the reaction A+B ? C is rate = K [A]
2
[B] . What would the
reaction rate be when concentration of both  A and B are doubled? 
4. Write the integrated rate equation for –
i) zero order reaction.
ii) first order reaction. 
5. From the graph below 
i) Identify the order of reaction.
ii) What will be the unit of rate constant?
6. The reaction 2N 2O 5 (g) ? 2NO 2 (g) +O 2 (g) was studied and the following data were
collected :
s.no [N 2O 5] mol L
-1
Rate of disappearance of [N 2O 5]
(mol/L/min
1.  1.13×10
-2
34×10
-5

2.  0.84 ×10
-2
25×10
-5

3.  0.62×10
-2
18×10
-5
Determine
i) The order
ii) The rate law.
iii) Rate constant for the reaction. 
7. The following experimental data was collected for the reaction:
Cl 2 (g) + 2NO (g) ? 2 NOCl(g)
Trial  Intial conc. Of Cl 2 (mol/L)  [NO] mol/L   Initial Rate,(mol/L/s)
1  0.10  0.010  1.2 X 10
-4

2  0.10  0.030  10.8 X 10
-4
3  0.20  0.030  21.6 X 10
-4

Construct the rate equation for the reaction. 
8. Draw a graph for
a) Concentration of reactant against time for a zero order reaction.
b) Log [Ro]/ [R] against time for a first order reaction. 
9. What is the use of integrated rate equation? 
10. For first order reaction –
A ? B
Write      (1) Differential rate law.
(2) Integrated rate law. 
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