Chemical Kinetics Quiz 5 – Punjab Meritorious School Preparation Portal

Welcome to your 6th Sep Chemical Kinetics Quiz 5 CBT TEST

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Point out the wrong statement: For a first order reaction

The rate constant of a reaction is 3.00 × 10³

L mol^–1 sec^–1. The order of this reaction will be:

0

1

2

3

10 g

40 g

80 g

20 g

The first order rate constant for the decomposition of N₂O₅ is 6.2 × 10^–4 sec^–1. The half-life period for this decomposition in seconds is

1117.7

111.7

223.4

160.9

3.06

1.06

4.06

0.06

Which one of the following plots is true for the first order decomposition of N₂O₅ ?

The rate law for the reaction 2X + Y → Z is Rate = k[X][Y]. The correct statement with regard to this relation is

the unit of k is s–1 (b) (c) (d)

the rate of the reaction is independent of [X] and [Y]

for this reaction t1/2 is independent of initial concentrations of reactant

the rate of formation of Z is half of the rate of disappearance of X

For the third order reaction, 3A → products, with 0.1 M as the initial concentration of A, t1/2 is 8 hr 20 minute. The rate constant of the reaction is

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1

0

3

2

–1, 1, 3/2

–1, 1, 1/2

1, 3/2, –1

1, –1, 3/2

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