Free Practice Questions on Chemical Kinetics

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S.No.QuestionView
1Which of the following statement about the catalyst is true?View
2Decomposition of NH Sub 3 on the surface of tungsten is a reaction of view
3On increasing the temperature by 10K, the rate of reaction becomes double. Which of the following is...View
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575% of the first order reaction was completed in 32 minute. 50% of the reaction was completed inView
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9Activation energy of a chemical reaction can be determined byView
10If a is the initial concentration and K is the rate constant of a zero order reaction, the time for...View
11The temperature coefficient of most of the reactions lies betweenView
12In the first order reaction, 75% of the reactant disappeared in 1.388 h. Calculate the rate constant...View
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15The ionic reactions are usually very fast becauseView
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19The half-lives of two samples are 0.1 and 0.4 second. Their respective concentrations are 200 and 50...View
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23For a chemical reaction....can never be fraction:View
24The reaction A+B -> products, keeping [A] constant, if [B] is doubled,  rate becomes double and keeping [B] constant if [A] is doubled,  rate becomes four times. The order of reaction is view
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26The conversion of A to B follows second order kinetics. Doubling the concentration of A will increas...View
27Unit of rate constant for zero order reaction isView
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30In Arrhenius plot, intercept is equal toView
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32DDT on exposure to water decomposes. Half-life= 10 years. How much time will it take for its 99% dec...View
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34Rate constant depends onView
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39Half life of a substance A following first order kinetics is 5 days. Starting with 100 g of A, amoun...View
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41The half-life of a radioactive isotope is three hours. If the initial mass of the isotope were 256 g...View
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46In a first order reaction, the concentration of the reactant decreases from 0.8 M to 0.4 M in 15 min...View
47A reaction involving two different reactants can never beView
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50A reaction was found to be second order with respect to the concentration of carbon monoxide. If the...View
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54During the manufacture of ammonia by Haber's N sub 2 add 3H sub 2 (g) arrow 2 NH sub 3 (g) process rate appearance of ammonia is: add d [NH sub 3]/dt equal 2 multiply 10 power -4. ms Power -1. view
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56In the following first order gaseous reaction A(g) arrow 2B(g) add C(g) initial pressure was found to be 400 mm Hg and after 20 minutes the final pressure was 1000 mmHg then rate law can be written as view
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59Mixture of two compounds A and B are placed in a flash and both the compounds decompose following fi...View
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62For the reaction 2A arrow bP when Brackets A equal 2.2 mM, the rate was found to be 2.4 mMs power -1. On reducing the concentration of A to half, the rate becomes 0.6 mMs power -1. Order of reaction w.r.t. A is view
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66As the reaction progresses the rate of reaction:View
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68A reaction was found to be second order with respect to the concentration of carbon monoxide. If the...View
69The rate constant does not depend uponView
70The order of a reactionView
71The units of rate of reaction and its rate constantView
72A substance (initial concentration a) reacts according to zero order kinetics. The time it takes for...View
73The order of an elementary reactionView
74The rate constant of a reaction followsView
75During the course of chemical reaction, the rate of a reactionView
76The activation in energy in a chemical reaction is defined asView
77The use of a catalyst helps inView
78The logarithm of rate constant of a reactionView
79The half-life of a radioactive isotope is 3h. What mass out of 100 g is left after 15 h?View
80For a first order reaction, the time taken to reduce initial concentration by a factor of 1/4 is 10...View
81The activation energy for a reaction which doubles the rate when the temperature is raised from 300...View
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83A catalyst is a substance whichView
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86The terms rate of reaction and rate of appearance (or disappearance) of reactant (or product)View
87The unit of rate of reaction isView
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90Which of the following rate laws has an overall order of 0.5 for reaction involving substances x, y...View
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100The half life period of a first order chemical reaction is 6.93 minutes. The time required for the c...View
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