AIIMS BSc Nursing Chemistry Most Expected Questions with Answers

AIIMS BSc Nursing Chemistry Most Expected Questions 2026 help candidates prepare for one of the most scoring sections of the entrance examination. Chemistry carries significant weight in the syllabus, and practising important MCQs from Physical, Organic, and Inorganic Chemistry helps strengthen conceptual understanding and improve problem-solving skills. 

These expected questions are based on commonly tested topics and previous exam trends, making them useful for revision, improving accuracy, and boosting confidence before the examination. 

AIIMS BSc Nursing Chemistry Most Expected Questions with Answers

The following Chemistry MCQs cover important topics such as the mole concept, acids and bases, atomic structure, states of matter, and basic chemical reactions. Practising these questions regularly can help improve speed and accuracy for the AIIMS BSc Nursing entrance examination. 

1. The unit of molarity is:

A. mol/kg
B. mol/L
C. g/L
D. mol
Answer: B. mol/L

2. Avogadro’s number is:

A. 6.022 × 10²²
B. 6.022 × 10²³
C. 6.022 × 10²⁴
D. 3.022 × 10²³
Answer: B. 6.022 × 10²³

3. pH of a neutral solution is:

A. 0
B. 7
C. 14
D. 1
Answer: B. 7

4. The atomic number represents:

A. Protons only
B. Neutrons only
C. Protons + neutrons
D. Electrons only
Answer: A. Protons only

5. The chemical symbol for gold is:

A. Ag
B. Au
C. Gd
D. Go
Answer: B. Au

6. The pH scale ranges from:

A. 0 to 7
B. 7 to 14
C. 0 to 14
D. 1 to 10
Answer: C. 0 to 14

7. Which of the following is a noble gas?

A. Oxygen
B. Nitrogen
C. Argon
D. Hydrogen
Answer: C. Argon

8. 1 mole of any substance contains:

A. 6.022 × 10²² particles
B. 6.022 × 10²³ particles
C. 6.022 × 10²⁴ particles
D. 1 particle
Answer: B. 6.022 × 10²³ particles

9. The formula of water is:

A. H₂O₂
B. H₂O
C. HO
D. H₃O
Answer: B. H₂O

10. Which acid is present in lemon?

A. Acetic acid
B. Hydrochloric acid
C. Citric acid
D. Sulphuric acid
Answer: C. Citric acid

11. Which of the following is a physical change?

A. Burning of wood
B. Rusting of iron
C. Melting of ice
D. Digestion of food
Answer: C. Melting of ice

12. The SI unit of mass is:

A. gram
B. kilogram
C. pound
D. tonne
Answer: B. kilogram

13. Which gas is used in photosynthesis?

A. Oxygen
B. Nitrogen
C. Carbon dioxide
D. Hydrogen
Answer: C. Carbon dioxide

14. The atomic mass unit (amu) is based on:

A. Hydrogen atom
B. Oxygen atom
C. Carbon-12 atom
D. Nitrogen atom
Answer: C. Carbon-12 atom

15. Which of the following is a strong acid?

A. Acetic acid
B. Citric acid
C. Hydrochloric acid
D. Carbonic acid
Answer: C. Hydrochloric acid

16. The chemical formula of common salt is:

A. NaCl
B. KCl
C. Na₂CO₃
D. CaCl₂
Answer: A. NaCl

17. Which of the following is a metal?

A. Oxygen
B. Sulphur
C. Iron
D. Chlorine
Answer: C. Iron

18. The process of conversion of liquid into gas is called:

A. Condensation
B. Evaporation
C. Freezing
D. Melting
Answer: B. Evaporation

19. The number of protons in an atom is called:

A. Mass number
B. Atomic mass
C. Atomic number
D. Valency
Answer: C. Atomic number

20. Which of the following is a base?

A. HCl
B. NaOH
C. H₂SO₄
D. HNO₃
Answer: B. NaOH

Benefits of Practicing AIIMS BSc Nursing Chemistry Most Expected Questions

Practising AIIMS BSc Nursing Chemistry Most Expected Questions helps students prepare in a smart and focused way for the entrance exam. It improves understanding, speed, and accuracy in solving questions.

Improves Exam Preparation

These questions focus on frequently tested Chemistry concepts, helping candidates prioritise high-weightage topics during revision. 

Better Concept Clarity

Regular practice helps in understanding key chemistry concepts in a simple and clear way.

Increases Speed and Accuracy

Solving MCQs repeatedly improves problem-solving speed and reduces mistakes in the exam.

Helps Understand Exam Pattern

Students get familiar with the type and difficulty level of questions asked in AIIMS BSc Nursing exams.

Boosts Confidence

Continuous practice builds confidence and reduces exam stress.

Useful for Revision

These questions act as quick revision material before the exam.