ABC Chemistry Blog · Blog

Latimer and Frost diagrams explained: how to read them, calculate non-adjacent potentials, and predict disproportionation and comproportionation.

Rotational spectroscopy explained: rigid rotor energy levels, 2B line spacing, selection rules, moment of inertia and bond length calculation, and

SN1 vs SN2 compared: kinetics, stereochemistry, substrate, nucleophile, leaving group and solvent effects, with a decision order for predicting the pathway.

Colligative properties for Class 12: Raoult

Combined spectroscopy problems: the order to read mass IR carbon NMR and proton NMR, degrees of unsaturation, and a worked reasoning procedure.

CIP priority rules and R/S assignment explained with the three errors that cost marks: branch exploration order, duplicated atoms for double bonds, and

Substitution mechanisms in octahedral complexes: dissociative vs associative pathways, evidence from rate laws and activation volumes, lability and the trans

Class 12 surface chemistry: adsorption vs absorption, physisorption and chemisorption, Freundlich isotherm, colloid classification, Tyndall effect,

Surface tension and viscosity explained: molecular origin, temperature dependence, capillary rise, measurement methods and surfactants.

Thermodynamics of mixing: entropy of mixing derivation, ideal solution enthalpy, why liquids are miscible, regular solutions and phase separation.

Collision theory vs transition state theory: assumptions, steric factor, the Eyring equation, entropy of activation and what each theory can and cannot

Wave-particle duality and the uncertainty principle: photoelectric effect, de Broglie wavelength, electron diffraction, and why the Bohr orbit picture fails.

Weekend and school-vacation chemistry batches for Class 11-12 students at the ABC Chemistry centre in Sector 113, Gurugram.

Why home tuition suits Class 11 and 12 science students in Dwarka — no travel, personal attention and quick fixing of weak chapters.

Third law of thermodynamics: statement, why absolute entropies exist, residual entropy, unattainability of absolute zero and calculating standard entropies.

Trans effect in square planar complexes: the trans series, sigma and pi contributions, and how it is used to synthesise cis and trans isomers selectively.

Transition metal properties explained: variable oxidation states, colour, magnetism, catalytic activity, complex formation and alloy formation.

Class 12 vectors and 3D geometry: dot and cross products, projections, shortest distance between skew lines, and the sine-vs-cosine rule for angles.

Vibrational spectroscopy: harmonic oscillator model, force constant and reduced mass, selection rules, anharmonicity, overtones, hot bands and the Morse

Polymer molar mass determination: number average vs weight average, polydispersity index, osmometry, light scattering and viscosity methods compared.

CBSE board exam timing as followed in 2026: 10:30 AM start, 15-minute reading time, 2–3 hour papers. 2027 dates and timings are not announced yet.

Bragg law and powder X-ray diffraction worked through: why X-rays are used, systematic absences for simple cubic, bcc and fcc, and how to extract the unit

Looking for a Class 11 Maths home tutor in Dwarka Delhi? ABC Chemistry offers expert home tuition with concept clarity and CBSE focus.

Find the best 11th Class Maths home tutor in Dwarka Delhi with ABC Chemistry. Expert tutors, one-to-one tuition, CBSE syllabus, regular tests. Call now!

Looking for a Class 12 Chemistry home tutor in Dwarka Delhi? ABC Chemistry offers expert home tuition with concept clarity and board exam focus.

Looking for a Class 12 Maths home tutor in Dwarka Delhi? ABC Chemistry offers expert home tuition with CBSE focus and exam-oriented teaching.

Looking for Class 12 Chemistry home tuition in Dwarka Delhi? Join ABC Chemistry for expert CBSE, NEET & JEE preparation with personal attention. Book demo

Get the best 12th Class Maths home tutor in Dwarka Delhi with ABC Chemistry. 1-to-1 coaching, CBSE syllabus, concept clarity & board exam prep. Call now!

Join 12th Maths Coaching Classes for CBSE board exam preparation. Learn Calculus, Matrices, and Probability with expert tutors. Call +91 92121 42427.

Actinides compared with lanthanides: 5f orbital accessibility, oxidation state range, actinide contraction, radioactivity and separation chemistry.

Class 12 alcohols, phenols and ethers — why phenol is acidic, the reactions that actually appear, and how to attack conversion questions systematically.

Aldehydes, ketones and carboxylic acids for Class 12: reactivity order, Tollens, Fehling and iodoform tests, and what controls carboxylic acid strength.

Aldol condensation mechanism: alpha hydrogen acidity, enolate formation, crossed aldol problems, intramolecular aldol and the dehydration step explained.

Class 12 amines — why the basicity order flips between gas phase and water, the reactions that appear every year, and the tests that distinguish 1°, 2° and

Amino acids and peptides: zwitterion structure, isoelectric point, titration curves, peptide bond planarity and resonance, and separation by electrophoresis.

Titration principles: equivalence vs end point, titration curve shapes, indicator selection for weak and strong systems, and redox and complexometric titratio

Application of derivatives for Class 12: tangents and normals, first and second derivative tests, points of inflection, and absolute extrema on closed

Electrophilic aromatic substitution: mechanism, activating and deactivating groups, ortho para and meta direction, and why halogens are the exception.

Aromatic nucleophilic substitution: addition-elimination mechanism, Meisenheimer complex, benzyne elimination-addition mechanism and the labelling evidence.

Aromaticity and Huckel 4n+2 rule: the four conditions, how to count pi electrons including lone pairs, antiaromatic vs non-aromatic, and worked heterocyclic

Arrhenius equation explained: exponential and logarithmic forms, Arrhenius plots, the two-point method, the meaning of the pre-exponential factor and

Asymmetric synthesis explained from the diastereomeric transition state: chiral auxiliaries, catalysts and reagents, enantiomeric excess, and why resolution

Class 11 atomic structure: the four quantum numbers, Aufbau, Pauli and Hund

Discover the best AI tools for Class 11 & 12 students to improve concept clarity, solve doubts faster, manage studies & score better in exams.

Are you pursuing a B.Sc in Chemistry and looking for expert guidance to strengthen your concepts and boost your exam performance?

if you are searching best Chemical Science Coaching in Dwarka Delhi then visit abcchemistry.com Read the full article by ABC Chemistry — coaching for Class

Looking for the best chemistry coaching in Delhi? Join ABC Chemistry in Dwarka for Class 11–12, JEE, NEET & CUET with expert teachers and concept clarity.

If you are searching for the best Class 11 Chemistry tuition in Dwarka, Delhi, then visit ABC Chemistry by Aniket Bhardwaj.