JEE Main Chemistry — Full Syllabus Test 4

JEE Main • Chemistry • Full Syllabus

Easy30 PTS

Questions

45 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 30-question test. Test your knowledge below or take the full exam in timed CBT mode.

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Question 1 of 30

The number of oxygen atoms in 0.5 mol of O₂ is

3.011 × 10²³

6.022 × 10²³

1.204 × 10²⁴

12.04 × 10²³ × 2

View Correct Answer & Step-by-Step Solution

Correct Option:(B)6.022 × 10²³

Detailed explanation is available inside the official test attempt review.

Question 2 of 30

The number of unpaired electrons in Fe³⁺ (Z = 26) is

View Correct Answer & Step-by-Step Solution

Correct Option:(C)5

Detailed explanation is available inside the official test attempt review.

Question 3 of 30

The bond order of N₂ is

2.5

View Correct Answer & Step-by-Step Solution

Correct Option:(C)3

Detailed explanation is available inside the official test attempt review.

Question 4 of 30

A system that exchanges neither energy nor matter with its surroundings is

open

closed

isolated

adiabatic only

View Correct Answer & Step-by-Step Solution

Correct Option:(C)isolated

Detailed explanation is available inside the official test attempt review.

Question 5 of 30

Elevation in boiling point is given by

ΔTb = Kb × m

ΔTb = Kf × m

ΔTb = RT/m

ΔTb = m/Kb

View Correct Answer & Step-by-Step Solution

Correct Option:(A)ΔTb = Kb × m

Detailed explanation is available inside the official test attempt review.

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Frequently asked questions

How many questions are there in JEE Main Chemistry — Full Syllabus Test 4?

There are 30 questions to answer in 45 min. Each correct answer gives 1 mark, for a total of 30 marks.

Is there negative marking?

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

Is this mock test free?

It costs 30 points, deducted only when you press Start. You never pay money: points are free to earn by completing your profile, daily login, the daily quiz and inviting friends.

What does this test cover?

It covers the full JEE Main Chemistry syllabus. 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.