Free online practice test
Chemistry Sectional Test 1
IISER IAT · IISER Aptitude Test 2026
Syllabus-checked original practice
Mapped to the official IAT syllabus and answer-checked on 31 August 2026.
View official syllabus sourceBefore you begin
- 1This sectional test contains 15 original Chemistry questions.
- 2Each wrong answer deducts marks using the scoring rule shown above. Unattempted questions score zero.
- 3You can mark a question for review and come back to it later using the question palette.
- 4The timer starts as soon as you click "Start test" and the test auto-submits when time runs out.
- 5You can review your answers and explanations for every question immediately after submitting.
About this IISER IAT Chemistry sectional test
This sectional test isolates Chemistry from the IISER IAT IAT pattern, so you can drill it on its own instead of only meeting it inside the full mock. It draws 15 original practice questions across 15 distinct topics, syllabus-checked the same as our full mocks.
Topics covered
Aromatic substitution
1 question
Buffer solutions
1 question
Chemical bonding
1 question
Chemical kinetics
1 question
Colligative properties
1 question
Electrochemistry
1 question
Gaseous state
1 question
Haloalkanes
1 question
Ionic equilibrium
1 question
Molecular orbital theory
1 question
Rate law
1 question
Redox stoichiometry
1 question
Solubility product
1 question
Stereochemistry
1 question
Thermochemistry
1 question
Scoring and result analysis
Correct answers earn 4 marks and wrong answers deduct 1 mark. Unattempted questions score zero. This section's 15 questions are difficulty-tagged: 4 easy, 10 medium, 1 hard. After submitting, you receive topic-wise accuracy, time spent, answer explanations, and source links.
Frequently asked questions
Is this an official IISER IAT question paper?
No. It's an independent practice test with original Chemistry questions, mapped to the official IISER IAT IAT syllabus and answer-checked on 31 August 2026.
How many questions are in this Chemistry sectional test, and how long is it?
15 questions in 45 minutes.
Which topics does this test focus on?
It spans 15 topics, with the heaviest coverage on Aromatic substitution, Buffer solutions, and Chemical bonding.
Is there negative marking in this test?
Yes. Each wrong answer deducts 1 mark, and each correct answer earns 4 marks. Unattempted questions score zero.