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Free Online Mock Chemistry Multiple Choice Test on Chemical Kinetics
Sub Category : Chemical Kinetics Test : 11 Time Left :
1) The following data are for the decomposition of ammonium nitrite in aqueous solution Volume of N2 in c.c. Time (minutes) 6.25 10 9.00 15 11.40 20 13.65 25 35.05 Infinity The order of the reaction is(1) Zero (2) one (3) Two (4) Three.
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2) The reaction L->M is started with 10.0 g of L. After 30 and 90 minutes 5.0 g and 1.25 g of L respectively are left. The order of the reaction is (1) 0 (2) 1 (3) 2 (4) 3.
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3)If initial concentration is reduced to 1/4th in a zero order reaction, the time taken for half the reaction to complete
(1) remain same (2) becomes 4 times (3) becomes one-fourth (4) doubles.
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4) The rate of the first order reaction X->Products is 7.5Ã-10-4 mol L-1 s-1 when the concentration of X is 0.5 mol L-1. The rate constant is (1) 3.75 Ã- 10-4 s-1 (2) 2.5 Ã- 10-4 s-1 (3) 1.5 Ã- 10-3 s-1 (4) 3.0 Ã- 104 s-1.
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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 or reaction is (1) 3 (2) 1 (3) 2 (4) 0.
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