Chemical Kinetics (NEET Chemistry): Questions 13 - 19 of 50

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Question number: 13

» Chemical Kinetics » Differential and Integral Forms of Zero and First Order Reactions

MCQ▾

Question

The half-life of first order reaction having rate constant k = 1.7×10-5 sec-1 is?

Choices

Choice (4) Response

a.

1.8 hrs

b.

11.3 hrs

c.

9.7 hrs

d.

12.1 hrs

Question number: 14

» Chemical Kinetics » Differential and Integral Forms of Zero and First Order Reactions

MCQ▾

Question

The first order reaction has half life of 14.5 hrs. What percentage of the reactant will remain after 24 hrs?

Choices

Choice (4) Response

a.

45.5%

b.

68.2%

c.

18.3%

d.

31.8%

Question number: 15

» Chemical Kinetics » Rate Constant and Its Units

MCQ▾

Question

Rate constant of a reaction is 175 litre-1mol-2sec-1. What is the order of the reaction?

Choices

Choice (4) Response

a.

2

b.

0

c.

1

d.

3

Question number: 16

» Chemical Kinetics » Rate of a Chemical Reaction

MCQ▾

Question

The rate constant of the reaction Equation , is 3×10-5 sec-1. If the rate is 2.4×10-5 mol. lit-1sec-1. Then the concentration of Equation in mol lit-1 will be?

Choices

Choice (4) Response

a.

0.8

b.

1.2

c.

1.27

d.

2.1

Question number: 17

» Chemical Kinetics » Activation Energy

MCQ▾

Question

The activation energy of a reaction can be lowered by?

Choices

Choice (4) Response

a.

Decreasing temperature

b.

Using a positive catalyst

c.

Increasing reactants concentration

d.

Increasing temperature

Question number: 18

» Chemical Kinetics » Collision Theory of Bimolecular Gaseous Reactions

MCQ▾

Question

According to the collision theory?

Choices

Choice (4) Response

a.

All collisions are effective

b.

All collisions are responsible for product formation

c.

Only a fraction of collisions is effective which have enough energy to form products

d.

All collisions are sufficiently violent

Question number: 19

» Chemical Kinetics » Rate Law

MCQ▾

Question

For a single step reaction, A + 2B→ 2AB, the molecularity is?

Choices

Choice (4) Response

a.

One

b.

Three

c.

Zero

d.

Two

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