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Free Online Mock Chemistry Multiple Choice Test on Chemical Kinetics
Sub Category : Chemical Kinetics Test : 18 Time Left :
1) For an exothermic chemical process occurring in two steps as(i) A + B -> X (slow):(ii) X -> AB (fast) the progress of the reaction can be best described by
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2)In a hypothetical reaction 2X + Y -> M + N. If concentration of Y is kept constant but that of X is triped, the rate of reactio then will be
(1) increased by 3 times (2) increased by 6 times (3) increased by 9 times (4) unpredictable
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3) When ethyl acetate was hydrolysed in presence of 0.1 M HCl, the rate constant was found to be 5.40 Ã- 10-5s-1. But when 0.1 M H2SO4 was used for hydrolysis, the rate constant was found to be 6.20Ã-10-5s-1(1) H2SO4 is stronger than HCl (2) H2SO4 ¬HCl are both of the same strength (3) H2SO4 is weaker than HCl (4) The data is insufficient to compare the strength of HCl and H2SO4
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4) How will the rate of reaction 2SO2(g) + O2(g)-> 2SO3(g) change if volume of the reaction vessel is halved?(1) It will be 1/6th of its initial value (2) It will be 1/4th of its initial value (3) It will be 8 times of its initial value(4) It will be 4 times of its initialvalue
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5) The half life period for catalytic decomposition of AB3 at 50 mm is found to be 4 hrs and at 100 mm it is 2.0 hrs. The order of reaction is(1) 3 (2) 1 (3) 2 (4) 0
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