10th Class Chemistry Unit 17 Reaction Kinetics MCQs with Answers

1.The number of collisions per unit volume of the reaction mixture is called:

2.If the reactants possess an energy higher than the activation energy, then the reaction will be:

3.Which of the following explains the increase in rate of reaction in the presence of a catalyst?

4.Which of the following statements is correct?

5.When a reaction proceeds ahead, how the concentrations of reactants and products change?

6.A reaction takes place only when the participating particles _______ with one another:

7.Majority of the molecules of the reactants:

8.Rate of reaction depends upon number of:

9.A large number of collision per second will also result in the increase in:

10.Decrease in temperature will result the decrease in:

11.The minimum energy required to start a chemical reaction:

12.In path of reaction diagram, reactant before converting into products passes through:

13.After higher energy state, the reactants are converted into stable products and potential energy of the system:

14.Which law should be obeyed in a chemical reaction?

15.Some reactions may proceed with change in mass because reactant or product is:

16.If a ribbon of Mg is burnt in an open container, the mass of product (MgO) formed will be:

17.If calcium carbonate reacts with dilute HCl in open container, the mass of product will be:

18.In concentration time graph, the concentration of product reach _______ at the end of reaction:

19.In exothermic reactions, the temperature of surrounding:

20.Quick lime reacts with water to give:

21.When ammonium chloride is dissolve in water, the heat:

22.According to collision theory, all those factors which change the _______ per second affect the rates of chemical reactions:

23.The reactions are most often carried out in:

24.The higher the number of particles of the reactants per unit volume, higher will be the chances of:

25.Combustion of coal in air is relatively _______ as compared to the reaction in pure oxygen.

26.Limestone reacts with different concentrations of HCl at _______ rate:

27.The graph of reaction rate obtained is in the form of:

28.Rate of reaction of hydrogen and chlorine is doubled, when the pressure on chlorine is:

29.The larger the surface area of solids, the rate of reaction will be:

30.Food cooks _______ at higher temperatures than at lower ones:

31.In the addition of hydrogen and ethene, the catalyst used is:

32.In the presence of catalyst, which of the following is lowered?

33.Enzymes are specific for a specific reaction because of their part:

34.The information of rate of reaction involved in ripening is used to minimize the loses due to:

35.The reactions that convert starch into sugar in ripening of fruits involves:

36.Rate of production of ethene during ripening can be monitored to determine the best time to:

37.Some enzymes are naturally present in foods can spoil the foods which undergo changes in:

38.If a fruit is known to degrade rapidly during transportation owing to high temperature _______ can be employed to present rapid spoilage.

Unit 17: Reaction Kinetics — Mcqs