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100+ Free Maharashtra HSC Chemistry Practice Questions

Maharashtra Higher Secondary Certificate (HSC / Class 12) Chemistry under the Maharashtra State Board of Secondary and Higher Secondary Education (MSBSHSE), Pune — subject code 55 practice questions are available now; exam metadata is being verified.

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2026 Statistics

Key Facts: Maharashtra HSC Chemistry Exam

3 hours

Typical Maharashtra HSC Chemistry theory paper duration

MSBSHSE HSC exam pattern reporting for science subjects including Chemistry

35%

Common minimum passing floor per HSC subject under MSBSHSE

Maharashtra HSC pass-mark practice (~35% each subject)

70 + 30

Common theory + practical mark split for HSC Chemistry (code 55)

Maharashtra HSC subject-wise mark distribution reporting for Chemistry

Subject code 55

Official MSBSHSE HSC subject code for Chemistry

MSBSHSE HSC general subject codes (mahahsscboard.org/hscsub.htm)

Mixed written paper

Official Chemistry papers mix objective, short, long, and numerical items — not pure MCQ

MSBSHSE HSC Chemistry paper-pattern summaries

English MCQ adaptation

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

OpenExamPrep practice policy

Maharashtra MSBSHSE HSC Chemistry (code 55) is a Class 12 public-exam science subject of about 3 hours theory (commonly 70+30) with ~35% pass floor, covering Balbharati physical, inorganic, and organic chemistry — not a pure MCQ board paper. This free 2026 bank is an English MCQ study adaptation for concept and calculation fluency.

Sample Maharashtra HSC Chemistry Practice Questions

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

1A solid in which constituent particles are arranged in a long-range, repeating three-dimensional pattern is called a:
A.Amorphous solid
B.Crystalline solid
C.Supercooled liquid only
D.Plasma
Explanation: Crystalline solids have long-range order with a definite crystal lattice and sharp melting points. Amorphous solids lack long-range order and soften over a temperature range.
2How many atoms are effectively present in a face-centred cubic (FCC) unit cell?
A.1
B.2
C.4
D.8
Explanation: In FCC: 8 corner atoms × 1/8 = 1 and 6 face-centred atoms × 1/2 = 3, total Z = 4 atoms per unit cell.
3The packing efficiency of a body-centred cubic (BCC) crystal structure is closest to:
A.52%
B.68%
C.74%
D.100%
Explanation: BCC packing efficiency is 68% (exactly (π√3)/8). Simple cubic is ~52% and FCC/HCP ~74%.
4An octahedral void in a close-packed structure is surrounded by how many spheres?
A.3
B.4
C.6
D.8
Explanation: An octahedral void is formed by six spheres arranged at the vertices of an octahedron. A tetrahedral void is surrounded by four spheres.
5The density of a crystal is given by ρ = (Z × M) / (a³ × N_A), where a is the edge length. If Z doubles and a remains constant, density:
A.Halves
B.Doubles
C.Remains unchanged
D.Becomes four times
Explanation: Density is directly proportional to Z when M, a, and N_A are fixed. Doubling Z doubles ρ.
6A Schottky defect in an ionic crystal involves:
A.An ion missing from its lattice site with no charge balance consideration
B.Equal numbers of cation and anion vacancies maintaining electrical neutrality
C.Only interstitial cations with no vacancies
D.Only freons trapped in voids
Explanation: A Schottky defect is a pair (or stoichiometric set) of cation and anion vacancies so the crystal remains electrically neutral. Frenkel defects involve dislocation of an ion to an interstitial site.
7A metal crystallises in FCC with edge length a = 400 pm and molar mass M = 60 g mol⁻¹. Approximate density (N_A = 6.0 × 10²³) is closest to:
A.2.5 g cm⁻³
B.6.25 g cm⁻³
C.12.5 g cm⁻³
D.1.0 g cm⁻³
Explanation: ρ = ZM/(a³ N_A); Z = 4; a = 4.00 × 10⁻⁸ cm; a³ = 6.4 × 10⁻²³ cm³; ρ = (4 × 60)/(6.4 × 10⁻²³ × 6.0 × 10²³) = 240/38.4 ≈ 6.25 g cm⁻³.
8Molality (m) is defined as:
A.Moles of solute per litre of solution
B.Moles of solute per kilogram of solvent
C.Grams of solute per 100 mL of solution
D.Moles of solvent per kilogram of solute
Explanation: Molality is moles of solute per kilogram of solvent. Unlike molarity, it is independent of temperature because mass does not change with T.
9According to Raoult’s law for an ideal solution of a non-volatile solute, the vapour pressure of the solvent is:
A.Independent of mole fraction
B.Equal to the pure solvent vapour pressure times solvent mole fraction
C.Equal to the pure solute vapour pressure times solute mole fraction
D.Always equal to atmospheric pressure
Explanation: Raoult’s law: p_solvent = p°_solvent × x_solvent for a solution of non-volatile solute (solute contributes negligible vapour).
10Which colligative property depends on the number of solute particles, not their chemical identity?
A.Colour of the solution only
B.Elevation of boiling point
C.Density of pure solvent only
D.Atomic number of solute
Explanation: Colligative properties — relative lowering of vapour pressure, elevation of boiling point, depression of freezing point, and osmotic pressure — depend on the number of solute particles.

About the Maharashtra HSC Chemistry Practice Questions

Verified exam format metadata for Maharashtra Higher Secondary Certificate (HSC / Class 12) Chemistry under the Maharashtra State Board of Secondary and Higher Secondary Education (MSBSHSE), Pune — subject code 55 is pending. The practice questions above remain available while official exam length, timing, passing score, fee, and administrator details are reviewed.