11th Class Chemistry Chapter 11 MCQs with Answers

Welcome to the 11th Class Chemistry Chapter 11 MCQs Online Test. We are presenting you with top MCQ questions from the 11th Class Chemistry Chapter Reaction Kinetics

We want to tell you that you can find all the 11th Class Chemistry Chapter 11 MCQs online tests on our website. These online tests are great for learning and as well as for scoring maximum marks in your Intermediate Exams. We are making these Class 11 Chemistry MCQs online tests for those who want full marks in their exams. Attempt all these Grade 11 Chemistry Online Multiple Choice Questions MCQs before going for the exam and it will be beneficial for you! These online tests contain all the important multiple choice questions in the important topics of the FSC Part 1  Chemistry Chapter 11 Reaction Kinetics

11th Class Chemistry Chapter 11 MCQs with Answers

Youth For Pakistan has provided an excellent opportunity for the students of the 11th class to prepare their Chemistry Chapter 11 Reaction Kinetics online with the MCQs test.

This is a free platform for students to prepare for Chemistry Exams for Class 11 to get the best accomplishments in annual exams. 11th class Students can analyze themself by attempting this online test system as many times as they want until they find themself fully prepared.

MCQs Class 11 Chemistry with Answers

The purpose of these online MCQs tests is to help you evaluate your 11th Class Chemistry Chapter 11 MCQs. These Multiple Choice Questions (MCQs) will prepare you for your academic success in the 11th Class Exams. 11th Class Chemistry Chapters include Chapter 1 Basic concept, Chapter 2 Experimental Techniques in Chemistry, Chapter No 3 Gases, Chapter 4 Liquids & Solids, Chapter 5 Atomic Structure, Chapter 6 Chemical Bonding, Chapter 7 Thermochemistry, Chapter 8 Chemical Equilibrium, Chapter 9 Solutions, Chapter 10 Electrochemistry and Chapter 11 Reaction Kinetics. 

What is the Reaction Kinetics?

Chemical kinetics can be defined as “the investigation of chemical reaction rates and the molecular processes by which reactions occur where transport is not limiting” (Gardiner, 1969).

Chapter 11 Reaction Kinetics

1. Larger the surface area of the reactant molecules:

  1. Lower will be the rate of reaction
  2. Higher will be the rate of reaction
  3. The rate of reaction remains unaffected
  4. The rate may increase or decrease

2. In zero order reaction, the rate is independent of:

  1. Temperature of reaction P ast P
  2. Concentration of reactants
  3. Concentration of product
  4. None of these

3. The order of reaction of O3 + NO  NO2 + O2 is:

  1. One
  2. Two
  3. Three
  4. Zero

4. Decomposition of nitrogen penta oxide has order of reaction:

  1. Zero
  2. First
  3. Second
  4. Third

5. A substance which retards the rate of reaction is called:

  1. Inhibitor
  2. Activator
  3. Oxidant
  4. Auto-Catalyst

6. The minimum amount of energy required for an effective collision is called:

  1. Activation energy
  2. Internal energy
  3. Translational energy
  4. None

7. The catalyst used for the reaction HCOOH  H2+CO2 is:

  1. Copper
  2. Alumina
  3. Silica
  4. Iron

8. Sugar solution hydrolyses to glucose and fructose in the presence of enzyme:

  1. Urease
  2. Invertase
  3. Zymase
  4. None

9. When a reaction proceeds in sequence of steps, the overall rate is determined by:

  1. Faster step
  2. Slowest step
  3. Molecularity of all steps
  4. Order of different step

10. A substance which makes the catalyst more effective is called:

  1. Inhibitor
  2. Retarder
  3. Promoter
  4. Auto Catalyst

11. If 75% of any given amount of radioactive element disintegrates in 60 minutes the half life of radioactive element is:

  1. 20 minutes
  2. 30 minutes
  3. 40 minutes
  4. 25 minutes

12. with increase of 10°C temperature, the rate of reaction becomes double. This increase in rate of reaction is due to:

  1. Decrease in the activation energy of reaction
  2. Decrease in number of collision between the molecules
  3. Increase in activation energy of reactants
  4. Increase in number of effective collision

13. The unit of rate constant for zero order reaction is:

  1. dm3 S-1
  2. mole dm3S-1
  3. dm2 mol ‘s-1
  4. mole S-1

14. If the rate equation of reaction 2 A + B  Product

Rate = k [A]2 [B] and A is present in large excess, then order of reaction is:

  1. 1
  2. 2
  3. 3
  4. None of these

15. The half life period of 14Cis 5760 years. 100mg of sample of 146Cis will reduce to 25mg in:

  1. 11520 years
  2. 2880 years
  3. 57600 years
  4. 5760 years

16. The energy of activated complex is:

  1. Greater than the reactants and products
  2. Less than the reactants and products
  3. Equal to the products
  4. Equal to the reactants

17. Indicate the enzyme which catalyses the following: C6H12O6 2C2H5OH + 2CO2

  1. Diastase
  2. Zymase
  3. Urease
  4. Invertase

18. The rate of chemical reaction depends upon the nature of reactants because?

  1. Some of the reactants have high boiling point
  2. Some of the reactants are colored
  3. Energy of activation differs from one reaction to another
  4. Some of the reactants are solid at room temperature

19. Which of following is an example of homogenous catalysis?

  1. Formation of ghee from oil
  2. Formation of SO3 in contact process
  3. Hydrolysis of ester Hydrolysis
  4. Formation of NH3 in Haber process

20. In zero order reaction the rate is independent of:

  1. Temperature of reaction
  2. Concentration of products
  3. Concentration of reactants
  4. None of these

21. Hydrolysis of Tertiary butyl bromide has order of reaction:

  1. First order
  2. Pseudo first order
  3. Second order
  4. Third order

22. A substance which decreases the efficiency of a catalyst is called:

  1. Promoter
  2. Activator
  3. Poison
  4. Auto catalyst

23. Photo chemical reactions are:

  1. First order
  2. Third order
  3. Second order
  4. Zero order

24. The rate of chemical reaction is independent of:

  1. Molecularity
  2. Temperature
  3. Nature of reactants
  4. Concentration of reaction

25. The unit of rate constant for zero order reaction:

  1. mol dm-3s-1
  2. mol-1dm3s-1
  3. dm3s-1
  4. mol s-1

26. The energy of activation for a reaction by using catalyst is:

  1. Increased
  2. Decreased
  3. Not changed
  4. Moderate

27. Specific rate constant is equal to rate of reaction when concentrations of reactants are:

  1. Zero
  2. Four
  3. Three
  4. Unity

28. The equation K = Ae-EaRT is called:

  1. Rate law
  2. Rate equation
  3. Arrhenius equation
  4. General gas equation

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