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100+ Free BSEH SS Chemistry Practice Questions

Board of School Education Haryana (BSEH) Senior Secondary Chemistry (Class 12 — Chemistry elective, date-sheet code 856) practice questions are available now; exam metadata is being verified.

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2026 Statistics

Key Facts: BSEH SS Chemistry Exam

3 hours

Typical BSEH Senior Secondary Chemistry theory exam duration

BSEH date-sheet logistics (code 856)

70 + 30

Theory marks plus practical marks for Class 12 Chemistry

BSEH Class 12 Chemistry syllabus unit scheme

33%

Common Senior Secondary subject pass floor for BSEH theory electives

BSEH Senior Secondary notification practice

Code 856

Chemistry subject code on BSEH Senior Secondary date sheet

BSEH date sheet

English MCQ adaptation

This free local bank is not the official Senior Secondary paper format

OpenExamPrep practice policy

BSEH Senior Secondary Chemistry is a Class 12 public-exam subject with theory 70 + practical 30 (~3 hours theory, date-sheet code 856) and a 33% pass floor — not a pure MCQ board paper. This free 2026 bank is an English MCQ study adaptation for NCERT/BSEH-aligned Class 12 Chemistry concepts and calculations.

Sample BSEH SS Chemistry Practice Questions

Try these sample questions to test your BSEH SS Chemistry exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Molarity of a solution is defined as the number of moles of solute per:
A.Litre of solution
B.Kilogram of solvent
C.Litre of solvent
D.Kilogram of solution
Explanation: Molarity (M) = moles of solute / volume of solution in litres. Molality uses kilograms of solvent.
2Which concentration unit does not change with temperature?
A.Molarity
B.Molality
C.Normality
D.Formality based on volume
Explanation: Molality uses mass of solvent, which is temperature-independent. Volume-based units change as the solution expands or contracts with T.
35.85 g of NaCl (M = 58.5 g mol⁻¹) is dissolved in water to make 500 mL of solution. The molarity is:
A.0.20 M
B.0.10 M
C.0.50 M
D.1.00 M
Explanation: Moles of NaCl = 5.85/58.5 = 0.10 mol. Volume = 0.500 L. Molarity = 0.10/0.500 = 0.20 M.
418 g of glucose (M = 180 g mol⁻¹) is dissolved in 200 g of water. Molality of the solution is:
A.0.50 m
B.0.10 m
C.1.00 m
D.0.25 m
Explanation: Moles of glucose = 18/180 = 0.10 mol. Mass of solvent = 0.200 kg. Molality = 0.10/0.200 = 0.50 m.
5Raoult’s law for a volatile solvent A states that its partial vapour pressure is:
A.p_A = p_A° · x_A
B.p_A = p_A° / x_A
C.p_A = p_A° · m_A
D.p_A = p_A° + x_A
Explanation: Raoult’s law: partial pressure of solvent A equals its pure vapour pressure times its mole fraction in the solution.
6Colligative properties of dilute solutions depend primarily on the:
A.Number of solute particles, not their chemical identity
B.Colour of the solute
C.Magnetic moment of the solute
D.Nuclear spin of the solute
Explanation: Relative lowering of vapour pressure, elevation of boiling point, depression of freezing point, and osmotic pressure depend on particle count (ideal dilute case), not identity.
7A 0.1 m aqueous solution of a non-volatile non-electrolyte has K_b = 0.52 K kg mol⁻¹. Elevation of boiling point is:
A.0.052 K
B.0.52 K
C.5.2 K
D.0.0052 K
Explanation: ΔT_b = K_b · m · i with i = 1 for non-electrolyte. ΔT_b = 0.52 × 0.1 = 0.052 K.
8For a 0.05 m NaCl solution assuming complete dissociation (i = 2) and K_f = 1.86 K kg mol⁻¹, depression of freezing point is:
A.0.186 K
B.0.093 K
C.0.372 K
D.1.86 K
Explanation: ΔT_f = K_f · m · i = 1.86 × 0.05 × 2 = 0.186 K.
9Osmotic pressure of a solution is given by (ideal dilute case):
A.π = CRT
B.π = C/RT
C.π = RT/C
D.π = C²RT
Explanation: van’t Hoff equation: π = CRT, where C is molar concentration of solute particles, R gas constant, T absolute temperature.
10At 300 K, osmotic pressure of a solution containing 1.0 g of a non-electrolyte solute (M = 60 g mol⁻¹) in 500 mL solution is approximately (R = 0.0821 L atm K⁻¹ mol⁻¹):
A.0.82 atm
B.0.41 atm
C.1.64 atm
D.0.082 atm
Explanation: n = 1.0/60 = 1/60 mol. C = n/V = (1/60)/0.5 = 1/30 M. π = CRT = (1/30)×0.0821×300 ≈ 0.821 atm ≈ 0.82 atm.

About the BSEH SS Chemistry Practice Questions

Verified exam format metadata for Board of School Education Haryana (BSEH) Senior Secondary Chemistry (Class 12 — Chemistry elective, date-sheet code 856) is pending. The practice questions above remain available while official exam length, timing, passing score, fee, and administrator details are reviewed.