BSEB Intermediate Chemistry study guide
BSEB Intermediate Chemistry · Work through your exam, one topic at a time.
The Bihar School Examination Board (BSEB) Intermediate Chemistry examination is the Class 12 chemistry assessment for students enrolled in the Bihar higher secondary system. It is intended for candidates who have completed the Intermediate first year (Class 11) and are seeking certification to pursue undergraduate science programmes, entrance examinations such as NEET and JEE, or vocational pathways. The BSEB Intermediate Chemistry study guide has 12 sections and about 3,970 words.
01Solutions
Solutions is a short, high-yield domain: concentration terms, Raoult's law, deviation behaviour, and one colligative-property calculation. Bihar Board papers usually pair a conceptual part (why does a mixture show positive deviation?) with a numerical on molar mass or van't Hoff factor.
385 words, about 2 min02Electrochemistry
Electrochemistry in this paper means three linked skills: conductance and Kohlrausch's law, the Nernst equation applied to a cell, and Faraday's laws with commercial cells and corrosion. Conductivity κ (S cm⁻¹) falls on dilution because the number of ions per unit volume drops; molar conductivity Λm = 1000κ/c rises and levels off at infinite dilution.
342 words, about 2 min03Chemical Kinetics
Chemical Kinetics tests whether you can turn experimental rate data into a rate law: order, integrated rate equations, half-life, and Arrhenius behaviour. Order is experimental; molecularity is theoretical and applies only to an elementary step.
315 words, about 2 min04The d- and f-Block Elements
The d- and f-Block Elements questions centre on electronic configuration, oxidation states, colour and magnetism, lanthanoid contraction, and the chemistry of KMnO₄ and K₂Cr₂O₇. A transition element has an incomplete d subshell in its atom or in a common ion.
326 words, about 2 min05Coordination Compounds
Coordination Compounds marks come from IUPAC nomenclature, isomer counting, magnetic moment and the bonding models (VBT and CFT). Nomenclature: list ligands alphabetically, prefix anionic ligands with chloro, hydroxo, oxalato, nitrito; an anionic complex takes the Latin metal name with -ate (ferrate, cuprate); oxidation state goes in Roman numerals in brackets.
306 words, about 2 min06Haloalkanes and Haloarenes
Haloalkanes and Haloarenes tests substitution versus elimination, the SN1/SN2 distinction, and why aryl halides are so unreactive. SN2: one step, backside attack, inversion of configuration, second order; favoured by CH₃ 1° 2° 3°, strong nucleophile, polar aprotic solvent.
321 words, about 2 min07Alcohols, Phenols and Ethers
Alcohols, Phenols and Ethers rewards precise knowledge of distinguishing tests, acidity comparisons and the named reactions of phenol. Lucas test with conc.
314 words, about 2 min08Aldehydes, Ketones and Carboxylic Acids
Aldehydes, Ketones and Carboxylic Acids means nucleophilic addition, the named reactions that distinguish carbonyl compounds, and the ranking of acid strength. Aldehydes are more reactive than ketones: less steric crowding and less electron release by alkyl groups onto the carbonyl carbon.
291 words, about 1 min09Amines
Amines is examined through basicity comparisons, tests distinguishing 1°, 2° and 3° amines, and diazonium chemistry. Basicity in water: (CH₃)₂NH CH₃NH₂ (CH₃)₃N NH₃.
327 words, about 2 min10Biomolecules
Biomolecules covers carbohydrate classification and reactions, amino acids and proteins, enzymes, and nucleic acids. Glucose is an aldohexose, fructose a ketohexose.
339 words, about 2 min11p-Block Elements
p-Block Elements questions test periodic trends, the anomalous behaviour of the first member of each group, oxoacid strength, and the key industrial compounds. Inert-pair effect: the stability of the (n − 2) oxidation state grows down groups 13–15, giving Tl⁺, Pb²⁺ and Bi³⁺.
340 words, about 2 min12Practical Chemistry
Practical Chemistry covers qualitative salt analysis, functional-group detection and titration technique - the marks most often lost through careless recording rather than lack of knowledge. Cation groups: Group I (Pb²⁺, Ag⁺, Hg₂²⁺) with dilute HCl; Group II (Pb²⁺, Cu²⁺, Bi³⁺, Hg²⁺) with H₂S in dilute HCl; Group III (Al³⁺, Fe³⁺, Cr³⁺) with NH₄OH in the presence of NH₄Cl; Group IV (Zn²⁺, Mn²⁺, Ni²⁺, Co²⁺) with H₂S in ammoniacal medium; Group V (Ba²⁺, Sr²⁺, Ca²⁺) with (NH₄)₂CO₃.
364 words, about 2 min