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Free Practice Questions for BSEB Intermediate Chemistry

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Key Facts: BSEB Intermediate Chemistry Exam

3 h 15 min

Typical duration of the Intermediate Chemistry theory paper under BSEB (subject code 118)

BSEB Intermediate model/annual papers for Chemistry 118

~70 + ~30

Typical theory marks plus practical/internal assessment marks for Intermediate Chemistry

BSEB Intermediate Chemistry examination pattern summaries and model papers

~30%

Usual Intermediate pass benchmark range with separate theory/practical rules (confirm circular)

BSEB Intermediate examination pass-mark practice

Code 118

BSEB Intermediate Chemistry subject code used on model and annual papers

BSEB Intermediate Chemistry model papers

Written + practical

Official assessment mixes objective/written theory with a practical component; this bank is an English MCQ study adaptation only

BSEB Intermediate Chemistry paper pattern

100 FREE MCQs

Local practice bank size for concept and calculation drill (not the official item count)

OpenExamPrep practice bank

Free 100-question English MCQ study bank for BSEB Intermediate Chemistry (Class 12, code 118). Official exams are ~3 h 15 min theory (~70) plus practical (~30); pass roughly ~30% with separate theory/practical rules; fee part of Intermediate fees notified by BSEB. Not an official full-format simulation. Sources: biharboardonline.com model papers and NCERT Class 12 Chemistry.

Sample BSEB Intermediate Chemistry Practice Questions

Try these sample questions to review concepts for the BSEB Intermediate Chemistry exam. 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 is temperature-independent?
A.Molarity
B.Molality
C.Normality of a dilute aqueous solution only
D.Volume percent of a gas mixture at fixed T,P only
Explanation: Molality uses mass of solvent, which does not change with temperature. Molarity uses volume, which can expand/contract with T.
3Raoult's law for a volatile solvent states that the partial vapour pressure of the solvent is proportional to its:
A.Molality only
B.Molarity only
C.Mole fraction in the solution
D.Density only
Explanation: Raoult's law: p_A = p_A° · x_A, where x_A is the mole fraction of solvent A in the solution.
4Colligative properties depend primarily on the:
A.Colour of the solute
B.Magnetic moment of the solute
C.Nuclear spin of the solute
D.Number of solute particles, not their identity
Explanation: Colligative properties (ΔTb, ΔTf, π, relative lowering of vapour pressure) depend on the number of dissolved particles per solvent amount, not chemical identity (ideal dilute case).
5In a galvanic cell, oxidation occurs at the:
A.Anode
B.Cathode
C.Salt bridge only
D.Voltmeter only
Explanation: By definition, oxidation occurs at the anode and reduction at the cathode in both galvanic and electrolytic cells (signs of electrodes differ by cell type).
6The SI unit of cell potential (EMF) is the:
A.Ampere (A)
B.Volt (V)
C.Ohm (Ω)
D.Coulomb (C)
Explanation: Electromotive force / cell potential is measured in volts (J C^-1).
7Faraday's first law of electrolysis states that the mass of substance deposited is proportional to the:
A.Square of the current only
B.Resistance of the electrolyte only
C.Quantity of electricity passed
D.Colour of the electrode
Explanation: m ∝ Q, where Q = It is the charge passed. Equivalently m = (E/F)·Q using electrochemical equivalent.
8The rate of a chemical reaction is generally expressed as the change in concentration of a reactant or product per unit:
A.Pressure only
B.Volume only
C.Mass of catalyst only
D.Time
Explanation: Rate = Δconcentration / Δtime (with stoichiometric factors as needed). Units are often mol L^-1 s^-1.
9For a first-order reaction, the half-life (t1/2) is:
A.Independent of the initial concentration
B.Directly proportional to initial concentration
C.Inversely proportional to the square of initial concentration
D.Zero for all reactants
Explanation: For first order, t1/2 = ln 2 / k, which does not depend on [A]0.
10The minimum energy that colliding molecules must possess for an effective collision is called:
A.Lattice energy
B.Activation energy
C.Ionisation energy
D.Electron affinity
Explanation: Activation energy Ea is the energy barrier that must be overcome for reactants to form products (Arrhenius model).

About the BSEB Intermediate Chemistry Exam

BSEB Intermediate Chemistry covers Class 12 (I.Sc. elective) chemistry under the Bihar School Examination Board, subject code 118. Content prioritises NCERT Class 12 Chemistry: Solutions, Electrochemistry, Chemical Kinetics, d- and f-Block Elements, Coordination Compounds, Haloalkanes and Haloarenes, Alcohols Phenols and Ethers, Aldehydes Ketones and Carboxylic Acids, Amines, Biomolecules, Polymers, Chemistry in Everyday Life, and solid-state/surface topics if retained in the notified syllabus for the year. Official assessment is written theory (~70 marks, ~3 h 15 min) plus practical (~30 marks), not multiple choice alone. This free English MCQ bank builds concept and calculation fluency before students practise official model papers and practical skills using resources from biharboardonline.com and NCERT.

Exam sponsor: Bihar School Examination Board (BSEB). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

Official BSEB Intermediate Chemistry assesses Class 12 content through a theory paper of about 70 marks lasting about 3 hours 15 minutes (subject code 118), typically with objective-type questions plus short and long answer sections, and a practical / internal assessment of about 30 marks conducted separately. Confirm the current model paper and notification for section weights and internal choice. This 100-question bank is an English-language MCQ study adaptation of that written syllabus — it does not fully simulate the official multi-section paper or lab practical format.

Time Limit

Typically 3 hours 15 minutes for the official Intermediate Chemistry theory paper (subject code 118), as printed on BSEB Intermediate model and annual papers. Practical exams are scheduled separately.

Passing Score

About 30% of maximum marks is the usual BSEB Intermediate pass benchmark range; Chemistry candidates must satisfy separate theory and practical pass rules as notified. Some secondary summaries quote about 33/100 aggregate — confirm the current year circular rather than unofficial fixed numbers.

Exam / Certification Fees

Included in the Intermediate examination fee schedule notified annually by BSEB. Exact rupee amounts vary by year and candidate category; check the latest fee notification on biharboardonline.com rather than unofficial fixed quotes.

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

Study emphasis ~12%

Solutions & Colligative Properties

Molarity/molality/mole fraction, Raoult's law, elevation/depression formulas, and osmotic pressure / van't Hoff factor.

Study emphasis ~12%

Electrochemistry

Cell notation, E°cell, Nernst basics, Kohlrausch ideas, and Faraday electrolysis calculations.

Study emphasis ~10%

Chemical Kinetics

Rate expressions, order determination, first-order half-life, and temperature dependence of rate.

Study emphasis ~18%

d/f-Block & Coordination Chemistry

Transition-metal properties, lanthanoid contraction, ligands, IUPAC names, isomerism, and CFT colour/magnetism basics.

Study emphasis ~28%

Organic Chemistry

Halo compounds through amines: mechanisms, named reactions, and distinguishing chemical tests.

Study emphasis ~12%

Biomolecules, Polymers & Everyday Chemistry

Sugars, amino acids/proteins, nucleic acids; addition/condensation polymers; common drugs and cleansing agents.

Study emphasis ~8%

Solid/Surface & Cross-topic Calculations

Unit cells and adsorption/colloid ideas if in syllabus; multi-step numerical practice across physical chemistry.

Preparing for the BSEB Intermediate Chemistry Exam

What You Need to Know

  • Passing score: About 30% of maximum marks is the usual BSEB Intermediate pass benchmark range; Chemistry candidates must satisfy separate theory and practical pass rules as notified. Some secondary summaries quote about 33/100 aggregate — confirm the current year circular rather than unofficial fixed numbers.
  • Assessment: Official BSEB Intermediate Chemistry assesses Class 12 content through a theory paper of about 70 marks lasting about 3 hours 15 minutes (subject code 118), typically with objective-type questions plus short and long answer sections, and a practical / internal assessment of about 30 marks conducted separately. Confirm the current model paper and notification for section weights and internal choice. This 100-question bank is an English-language MCQ study adaptation of that written syllabus — it does not fully simulate the official multi-section paper or lab practical format.
  • Time limit: Typically 3 hours 15 minutes for the official Intermediate Chemistry theory paper (subject code 118), as printed on BSEB Intermediate model and annual papers. Practical exams are scheduled separately.
  • Exam / certification fees: Included in the Intermediate examination fee schedule notified annually by BSEB. Exact rupee amounts vary by year and candidate category; check the latest fee notification on biharboardonline.com rather than unofficial fixed quotes. Official sources

Using Our Practice Resources

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

BSEB Intermediate Chemistry: Suggested Study Strategy

1Drill molarity, molality, colligative ΔT/π, rate/half-life, and electrochemistry EMF/Faraday calculations with units every day — numerical fluency scores heavily on BSEB papers.
2Practise writing full stepwise solutions for colligative problems, first-order kinetics, and electrode half-cell combinations — official papers reward clear working beyond MCQ recognition.
3For organic, master functional-group reactions and distinguishing tests (Lucas, Tollens, Fehling, carbylamine, azo dye, etc.) rather than only name-reaction lists.
4For coordination chemistry, drill IUPAC names, oxidation numbers, and isomer types with example complexes such as [Co(NH3)6]3+ and [Co(en)2Cl2]+.
5After MCQ concept checks, solve BSEB Intermediate Chemistry model papers (subject code 118) from biharboardonline.com and complete practical record work on schedule.

Frequently Asked Questions

Is the official BSEB Intermediate Chemistry exam only multiple choice?

No. Official Intermediate Chemistry theory papers (subject code 118) mix objective-type items with short and long constructed-response questions over about 3 hours 15 minutes, plus a practical component of about 30 marks. This bank is an English-language MCQ study adaptation for concept and calculation practice only — not a complete official-format simulation.

Does Intermediate Chemistry include a practical exam?

Yes. Chemistry is a practical-bearing science subject under BSEB. Theory is typically about 70 marks and practical / internal assessment about 30 marks. Candidates must complete prescribed practical work and appear as scheduled.

How long is the Chemistry theory paper and how many marks is it?

Theory duration is typically 3 hours 15 minutes for about 70 marks (subject code 118), with practical about 30 marks separate. Confirm the model paper and notification for your sitting on biharboardonline.com.

What is the passing score for Intermediate Chemistry?

BSEB Intermediate pass rules are generally near about 30% of maximum marks, with separate theory and practical requirements for practical-bearing subjects. Some guides quote about 33/100 aggregate. Always confirm the current year circular.

What does Intermediate Chemistry cost to take?

Chemistry is examined as part of the Intermediate examination. Fees are set annually by BSEB in official fee notifications and are not a single fixed public "chemistry-only" price. Check biharboardonline.com for the current schedule.

Which topics should I prioritise?

Cover NCERT Class 12 Chemistry as retained by BSEB: Solutions, Electrochemistry, Chemical Kinetics, d/f-block, Coordination Compounds, and organic chapters from haloalkanes through biomolecules (plus polymers/everyday chemistry and solid/surface if notified). Drill molarity, kinetics order/half-life, and cell EMF calculations. Use official model papers (code 118) alongside this MCQ bank.