Class 12 Chemistry: Chemical Kinetics — Chapter Test 1

Class 12 • Chemistry • Chemical Kinetics • Chapter Test

MediumFREE

Questions

20 min

Duration

Marks (1 each)

Negative marking

Original practice questions with full solutions by ExamPortal.

Instructions

• Read each question carefully and pick the correct answer.
• You can mark questions for review and come back to them.
• Answers are saved automatically.
• The test is submitted automatically when time runs out.

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SYLLABUS & QUESTION BLUEPRINT

Sample Practice Questions

Preview 5 sample questions from this 15-question test. Test your knowledge below or take the full exam in timed CBT mode.

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Question 1 of 15

The unit of the rate constant for a first-order reaction is:

mol L⁻¹ s⁻¹

s⁻¹

L mol⁻¹ s⁻¹

mol⁻¹

View Correct Answer & Step-by-Step Solution

Correct Option:(B)s⁻¹

Detailed explanation is available inside the official test attempt review.

Question 2 of 15

The half-life of a first-order reaction is:

\frac{0.693}{k}

\frac{[A]_0}{2k}

\frac{1}{k[A]_0}

0.693k

View Correct Answer & Step-by-Step Solution

Correct Option:(A)

\frac{0.693}{k}

Detailed explanation is available inside the official test attempt review.

Question 3 of 15

For a zero-order reaction, the rate:

depends on concentration

is independent of concentration

is always zero

doubles with concentration

View Correct Answer & Step-by-Step Solution

Correct Option:(B)is independent of concentration

Detailed explanation is available inside the official test attempt review.

Question 4 of 15

The Arrhenius equation is:

k = Ae^{-E_a/RT}

k = Ae^{E_a/RT}

k = \frac{E_a}{RT}

k = ART

View Correct Answer & Step-by-Step Solution

Correct Option:(A)

k = Ae^{-E_a/RT}

Detailed explanation is available inside the official test attempt review.

Question 5 of 15

A catalyst increases the rate of reaction by:

increasing ΔH

providing a path of lower activation energy

increasing the temperature

changing the equilibrium constant

View Correct Answer & Step-by-Step Solution

Correct Option:(B)providing a path of lower activation energy

Detailed explanation is available inside the official test attempt review.

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Frequently asked questions

How many questions are there in Class 12 Chemistry: Chemical Kinetics — Chapter Test 1?

There are 15 questions to answer in 20 min. Each correct answer gives 1 mark, for a total of 15 marks.

Is there negative marking?

No. Wrong answers do not lose marks, so attempt every question.

Is this mock test free?

Yes, it is completely free. Just log in with your email to start.

What does this test cover?

It covers the chapter "Chemical Kinetics" of Class 12 Chemistry. All questions are original, with a full solution for each.

Will I see my result and the solutions?

Yes. Right after you submit you get your score, accuracy, rank and percentile, and you can review every question with the correct answer and a step-by-step explanation.

Can I take this test again?

Yes, you can retake it as many times as you like and compare your scores.