Chemical Kinetics-Order of Reaction (KVPY Stream SB-SX (Class 12 & 1st Year BSC) Chemistry): Questions 1 - 5 of 13

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Question number: 1

» Chemical Kinetics » Order of Reaction

Appeared in Year: 2013

MCQ▾

Question

For a zero-order reaction with rate constant K, the slope of the plot of reactant concentration against time is:

Choices

Choice (4) Response
a.

k2.303

b.

k

c.

k2.303

d.

k

Question number: 2

» Chemical Kinetics » Order of Reaction

Appeared in Year: 2012

MCQ▾

Question

A zero-order reaction A product, with an initial concentration [A]0 has a half-life of 0.25. If one starts with the concentration 2[A]0 , then the half-life is

Choices

Choice (4) Response
a.

0.15

b.

0.25

c.

0.85

d.

0.45

Question number: 3

» Chemical Kinetics » Order of Reaction

MCQ▾

Question

Calculate the order of the reaction A product from the following data:

[A](moles/L)ddt[product](moles L S)0.002510.0×1050.0055.0×1050.012.5×105

Choices

Choice (4) Response
a.

2

b.

- 1

c.

0

d.

1

Question number: 4

» Chemical Kinetics » Order of Reaction

Appeared in Year: 2012

MCQ▾

Question

The following data are obtained for a reaction X+Y products

ExPt[X0]mol[Yo]molratemolL1S110.250.251.0×10620.500.254.0×10630.250.508.0×106

The overall order of the reaction is

Choices

Choice (4) Response
a.

5

b.

3

c.

2

d.

4

Question number: 5

» Chemical Kinetics » Order of Reaction

Appeared in Year: 2011

MCQ▾

Question

The concentration of a substance undergoing a chemical reaction becomes one half of it original value after time t, regardless of the initial concentration. The reaction is an example of a….

Choices

Choice (4) Response
a.

First order reaction

b.

Third other reaction

c.

Second order reaction

d.

Zero order reaction

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