Resources
Resources by Nouman Ahmed
188 published. Showing 1 to 48.
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Practice questions
A Level Chemistry: Optical Isomerism and Chirality — Practice Questions
Original exam-style practice questions with full worked answers on chiral centres, enantiomers, racemic mixtures and the relevance of chirality to drug synthesis for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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Practice questions
A Level Chemistry: Colour, Stereoisomerism and Stability Constants — Practice Questions
Original exam-style practice questions with full worked answers on d-orbital splitting and colour, cis/trans and optical isomerism in complexes, and stability constant (Kstab) calculations for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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Practice questions
IGCSE Chemistry: Alcohols and Carboxylic Acids — Practice Questions
Original exam-style practice questions with full worked answers on manufacturing ethanol, ethanoic acid reactions and esterification for IGCSE Chemistry.
Cambridge · IGCSE, O Level
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Practice questions
AS Chemistry: Atomic Structure, Radius and Isotopes — Practice Questions
Original exam-style practice questions with full worked answers on subatomic particles, deflection in an electric field, atomic/ionic radius trends and isotopes for Cambridge AS & A Level Chemistry 9701.
Cambridge · AS Level
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Practice questions
Atomic Structure: Practice Questions
Original exam-style practice questions with full worked answers on elements/compounds/mixtures, subatomic particles, electronic configuration and isotopes.
Cambridge · IGCSE, O Level
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Practice questions
IGCSE Chemistry: Petroleum, Alkanes and Alkenes — Practice Questions
Original exam-style practice questions with full worked answers on fractional distillation, alkane substitution, cracking and alkene addition reactions for IGCSE Chemistry.
Cambridge · IGCSE, O Level
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Practice questions
IGCSE Chemistry: Physical and Chemical Changes — Practice Questions
Original exam-style practice questions with full worked answers on identifying and justifying physical vs chemical changes for IGCSE Chemistry.
Cambridge · IGCSE, O Level
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Practice questions
IGCSE Chemistry: Practical Techniques — Titrations, Chromatography and Separation — Practice Questions
Original exam-style practice questions with full worked answers on apparatus choice, titration technique, chromatography (including Rf) and separation/purification methods for IGCSE Chemistry.
Cambridge · IGCSE, O Level
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Practice questions
A Level Chemistry: Arenes and Halogenoarenes — Practice Questions
Original exam-style practice questions with full worked answers on benzene's electrophilic substitution reactions, directing effects, and halogenoarene versus halogenoalkane reactivity for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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Practice questions
A Level Chemistry: Acids, Bases, Buffers and Partition Coefficients — Practice Questions
Original exam-style practice questions with full worked answers on pH, Ka, buffer solutions, Ksp and partition coefficients for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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Practice questions
A Level Chemistry: Group 2 — Thermal Stability and Solubility Trends Practice Questions
Original exam-style practice questions with full worked answers on the thermal stability and solubility trends of Group 2 compounds for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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Practice questions
A Level Chemistry: Phenol — Reactions and Acidity Practice Questions
Original exam-style practice questions with full worked answers on phenol's production, reactions and acidity, and the alcohol/acyl chloride reaction, for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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Practice questions
A Level Chemistry: Rate Equations and Catalysis — Practice Questions
Original exam-style practice questions with full worked answers on rate equations, orders of reaction, half-life, reaction mechanisms and catalysis for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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Study guides
Physical and Chemical Changes
How to identify and distinguish physical changes from chemical changes, with the evidence examiners actually accept, for Cambridge IGCSE 0620 and O Level 5070.
Cambridge · IGCSE, O Level
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Study guides
Practical Techniques: Experimental Design, Titrations, Chromatography and Separation
Apparatus, titration technique, chromatography (including Rf) and separation/purification methods for Cambridge IGCSE 0620 and O Level 5070 — the practical-skills half of Topic 12.
Cambridge · IGCSE, O Level
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Practice questions
A Level Chemistry: Amides and Amino Acids — Practice Questions
Original exam-style practice questions with full worked answers on amides, zwitterions, isoelectric point and dipeptide/tripeptide formation and hydrolysis for A Level Chemistry.
Cambridge · A Level
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Revision notes
A Level Chemistry: Amides and Amino Acids — Revision Notes
Condensed recall notes on amides, amino acids, zwitterions, isoelectric point, and dipeptide/tripeptide formation and hydrolysis for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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A Level Chemistry: Amines — Practice Questions
Original exam-style practice questions with full worked answers on amine basicity, preparation and diazotisation for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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Revision notes
A Level Chemistry: Amines — Revision Notes
Condensed recall notes on amine basicity, preparation, reactions and the comparison of aliphatic and aromatic amines for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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Practice questions
A Level Chemistry: Carboxylic Acids and Acyl Chlorides — Practice Questions
Original exam-style practice questions with full worked answers on acid strength, acyl chloride reactions and esterification for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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Revision notes
A Level Chemistry: Carboxylic Acids and Acyl Chlorides — Revision Notes
Condensed recall notes on carboxylic acid reactions, acidity, acyl chlorides and their derivatives for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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Practice questions
A Level Chemistry: Chromatography — Practice Questions
Original exam-style practice questions with full worked answers on TLC, gas chromatography, Rf values and percentage composition for A Level Chemistry.
Cambridge · A Level
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Revision notes
A Level Chemistry: Chromatography — Revision Notes
Condensed recall notes on TLC, gas-liquid chromatography, Rf values and retention time for Cambridge A Level Chemistry 9701, plus GC-MS as enrichment beyond the syllabus.
Cambridge · A Level
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A Level Chemistry: Condensation Polymerisation — Practice Questions
Original exam-style practice questions with full worked answers on polyesters, polyamides, hydrolysis and biodegradability for A Level Chemistry.
Cambridge · A Level
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A Level Chemistry: Condensation Polymerisation — Revision Notes
Condensed recall notes on polyesters, polyamides, hydrolysis and biodegradability for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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Practice questions
A Level Chemistry: Electrochemistry — Practice Questions
Original exam-style practice questions with full worked answers on electrode potentials, cell e.m.f. and electrolysis for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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Revision notes
A Level Chemistry: Electrochemistry — Revision Notes
Condensed recall notes on standard electrode potentials, cell e.m.f., feasibility and electrolysis for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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Practice questions
A Level Chemistry: Lattice Energy, Entropy and Gibbs Free Energy — Practice Questions
Original exam-style practice questions with full worked answers on Born-Haber cycles, entropy and Gibbs free energy for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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Revision notes
A Level Chemistry: Lattice Energy, Entropy and Gibbs Free Energy — Revision Notes
Condensed recall notes on Born-Haber cycles, entropy change and the Gibbs equation for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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Practice questions
A Level Chemistry: NMR Spectroscopy — Practice Questions
Original exam-style practice questions with full worked answers on carbon-13 and proton NMR, splitting and integration for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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A Level Chemistry: NMR Spectroscopy — Revision Notes
Condensed recall notes on carbon-13 and proton NMR, chemical shift, splitting and integration for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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A Level Chemistry: Organic Mechanisms and Arenes — Practice Questions
Original exam-style practice questions with full worked answers on reaction mechanisms, curly arrows and benzene for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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Revision notes
A Level Chemistry: Organic Mechanisms and Arenes — Revision Notes
Condensed recall notes on the four reaction mechanisms, curly-arrow rules and benzene delocalisation for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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Practice questions
A Level Chemistry: Multi-Step Synthesis Routes — Practice Questions
Original exam-style practice questions with full worked answers on organic synthesis routes, reagents and conditions for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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Revision notes
A Level Chemistry: Multi-Step Synthesis Routes — Revision Notes
Condensed recall notes on functional group interconversions, reagents and conditions, and planning multi-step routes for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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Practice questions
A Level Chemistry: Transition Elements — Practice Questions
Original exam-style practice questions with full worked answers on transition elements, complex ions and colour for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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Revision notes
A Level Chemistry: Transition Elements — Revision Notes
Condensed recall notes on variable oxidation states, complex ions, colour and catalysis for Cambridge A Level Chemistry 9701.
Cambridge · A Level
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Practice questions
IGCSE Chemistry: Acids, Bases and Salts — Practice Questions
Original exam-style practice questions with full worked answers on acids, bases, salt preparation and titrations for IGCSE Chemistry.
Cambridge · IGCSE, O Level
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Revision notes
Acids, Bases and Salts: Revision Notes
Condensed recall notes on acid and base properties, oxides, indicators and salt preparation for Cambridge IGCSE 0620 and O Level 5070.
Cambridge · IGCSE, O Level
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Metals, Alloys and Extraction: Practice Questions
Original exam-style practice questions with full worked answers on the reactivity series, extraction methods, alloys and rusting.
Cambridge · IGCSE, O Level
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Alloys and Extraction of Metals: Revision Notes
Condensed recall notes on alloys, the blast furnace, aluminium extraction and metal uses for Cambridge IGCSE 0620 and O Level 5070.
Cambridge · IGCSE, O Level
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Practice questions
AS Chemistry: Acids and Bases — Practice Questions
Original exam-style practice questions with full worked answers on Bronsted-Lowry theory, strong and weak acids, pH and buffers for AS Chemistry.
Cambridge · AS Level
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Revision notes
AS Chemistry: Acids and Bases — Revision Notes
Condensed recall notes on Brønsted-Lowry theory, conjugate pairs, titration curves and indicator choice for Cambridge AS & A Level Chemistry 9701.
Cambridge · AS Level
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AS Chemistry: Alcohols — Practice Questions
Original exam-style practice questions with full worked answers on alcohol classification, oxidation, dehydration, the iodoform test and the preparation of alcohols by reduction and ester hydrolysis for AS Chemistry.
Cambridge · AS Level
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Revision notes
AS Chemistry: Alcohols — Revision Notes
Condensed recall notes on alcohol classification, oxidation products, distinguishing tests and elimination for Cambridge AS & A Level Chemistry 9701.
Cambridge · AS Level
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Practice questions
AS Chemistry: Aldehydes and Ketones — Practice Questions
Original exam-style practice questions with full worked answers on nucleophilic addition, distinguishing tests and hydroxynitriles for AS Chemistry.
Cambridge · AS Level
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Revision notes
AS Chemistry: Aldehydes and Ketones — Revision Notes
Condensed recall notes on carbonyl reactions, nucleophilic addition, and the tests that identify aldehydes and ketones for Cambridge AS & A Level Chemistry 9701.
Cambridge · AS Level
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AS Chemistry: Group 17 — The Halogens — Practice Questions
Original exam-style practice questions with full worked answers on halogen reactivity, displacement, disproportionation and halide tests for AS Chemistry.
Cambridge · AS Level
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