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Temperature Dependence of Reaction, Class 12 Chemistry NCERT Solutions

1. There will be total 10 MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying

1. In the equation k = A . e-Ea/RT , A is known as
 
 
 
 

Question 1 of 10

2. If Ef and Eb are the activation energies of the forward and reverse reactions and the reaction is known to be exothermic, then:
 
 
 
 

Question 2 of 10

3. For a first order reaction it is observed that 3.6 x 10-18 reactant molecules exist in the activated state of a reaction at 300 K. The activation energy of the reaction is:
 
 
 
 

Question 3 of 10

4. The effect of temperature on reaction rate is given by
 
 
 
 

Question 4 of 10

5. The activation energies of two reactions are given as Ea1= 40 J and Ea2= 80 J, then the relation between their rate constants can be written as:
Temperature Dependence of Reaction Multiple Choice Questions for CBSE Class 12 Chemistry Topperlearning
 
 
 
 

Question 5 of 10

6. The activation energy of a chemical reaction can be determined by
 
 
 
 

Question 6 of 10

7. The rate constant, activation energy and Arrhenius parameter of a chemical reaction at 25°C are 3.0 x 10-4 s-1, 104.4 kJ mol-1 and 6.0 x 1014 s-1 respectively. The value of the rate constant at infinite temperature is is
 
 
 
 

Question 7 of 10

8. The plot of ln k vs 1/T is a straight line. The slope of the graph is:
 
 
 
 

Question 8 of 10

9. For a chemical reaction the rate constant is nearly doubled with the rise in temperature by
 
 
 
 

Question 9 of 10

10. The reactions with low activation energy are
 
 
 
 

Question 10 of 10