Chemical Kinetics-Differential and Integral Forms of Zero and First Order Reactions (NEET Chemistry): Questions 1 - 7 of 16

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Question number: 1

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

MCQ▾

Question

A substance reacts with initial concentration of a mol/dm3 according to zero order kinetics. The time it takes for the completion of the reaction is (k = rate constant)?

Choices

Choice (4) Response

a.

k/a

b.

a/2k

c.

2k/a

d.

a/k

Question number: 2

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

MCQ▾

Question

90 % of the first order reaction is completed in 70 minutes. The velocity constant of the reaction is?

Choices

Choice (4) Response

a.

0.0329

b.

3.29

c.

0.0293

d.

0.329

Question number: 3

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

MCQ▾

Question

Which of the following equation is true regarding zero order reaction?

Choices

Choice (4) Response

a.

dx/dt=k[A]0=k

b.

dx/dt=k[A]0=k

c.

dx/dt=k[A]1=k

d.

Either A or B

Question number: 4

» 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: 5

» 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: 6

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

MCQ▾

Question

According to the zero order reaction the concentration of the reactant?

Choices

Choice (4) Response

a.

Remains the same

b.

Decreases linearly with time

c.

Increases linearly with time

d.

Question does not provide sufficient data or is vague

Question number: 7

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

MCQ▾

Question

Which of the following plot represent the first order reaction?

Choices

Choice (4) Response

a.

Which plot explains first order reactions – Choice A

Which Plot Explains First Order Reactions – Choice A

Understanding the correct first order reaction

b.

Which plot explains first order reactions – Choice B

Which Plot Explains First Order Reactions – Choice B

Understanding the correct first order reaction

c.

Which plot explains first order reactions – Choice C

Which Plot Explains First Order Reactions – Choice C

Understanding the correct first order reaction

d.

Which plot explains first order reactions – Choice D

Which Plot Explains First Order Reactions – Choice D

Understanding the correct first order reaction

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