All India PMT CHEMISTRY Syllabus 2012 www.aipmt.nic.in

All India PMT CHEMISTRY Syllabus 2012 www.aipmt.nic.in

CHEMISTRY

Unit : 1 Some basic concepts in Chemistry

Importance of Chemistry, physical quantities and their measurement in Chemistry, SI Units,

uncertainty in measurements and use of significant figures, Unit and dimensional

analysis, Matter and its nature, laws of chemical combinations, atomic, and molecular,

masses mole concept, molar masses, percentage composition and molecular formula,

chemical stoichiometry.

Unit : 2 States of matter

Three states of matter, gaseous state, gas laws (Boyle’s Law and Charles Law), Avogadro’s

Law, Grahams’Law of diffusion, Dalton’s law of partial pressure, ideal gas equation, Kinetic

theory of gases, real gases and deviation from ideal behaviour, van der Waals’ equation,

liquefaction of gases and critical points, Intermolecular forces; liquids and solids.

Unit : 3 Atomic structure

Earlier atomic models (Thomson’s and Rutherford) , emission spectrum of hydrogen atom,

Bohr’s model, of hydrogen atom, Limitations of Bohr’s model, dual nature of matter and

radiation, Heisenberg uncertainty principle, quantum mechanical model of atom (quantum

designation of atomic orbitals and electron energy in terms of principal, angular momentum

and magnetic quantum numbers), electronic spin and spin quantum numbers, Pauli’s

exclusion principle, general idea of screening (constants) of outer electrons by inner electrons

in an atom, Aufbau principle, Hund’s rule, atomic orbitals and their pictorial representation,

electronic configurations of elements.

Unit : 4 Classification of elements and periodicity in properties

Need and genesis of classification of elements (from Doebereiner to Mendeleev), Modern

periodic law and present form of periodic table, Nomenclature of elements with atomic

number > 100, electronic configurations of elements and periodic table, electronic

configuration and types of elements and s, p, d and f blocks, periodic trends in properties of

elements (atomic size, ionization enthalpy, electron gain enthalpy, valence/

oxidation states and chemical reactivity).

Unit : 5 Chemical energetics

Some basic concepts in thermodynamics, first law of thermodynamics, heat capacity,

measurement of DU and DH, calorimetry, standard enthalpy changes, thermochemical

equations, enthalpy changes during phase transformations, Hess’s Law, standard enthalpies of

formation, bond enthalpies and calculations based on them.

Unit : 6 Chemical bonding

Kossel -Lewis approach to chemical bond formation, ionic bonds, covalent bonds, polarity of

bonds and concept of electronegativity, valence shell electron pair repulsion (VSEPR) theory ,

shapes of simple molecules, valence bond theory, hybridization involving s, p and d orbitals

and shapes of molecules s and p bonds; Molecular orbital theory involving

homounclear diatomic molecules; Hydrogen-bonding.

Unit : 7 Equilibrium

Equilibrium in physical and chemical processes

Equilibrium in physical and chemical processes, dynamic equilibrium, law of chemical

equilibrium and equilibrium constant, homogeneous equilibrium, heterogenous

equilibrium, application of equilibrium constants, Relationship between reaction

quotient Q, equilibrium constant, K and Gibbs’ energy G; factors affecting equilibrium-Le

Chateliar’s principle.Ionic equilibrium

Acids, Bases and Salts and their ionization, weak and strong electrolytes degree of ionization

and ionization constants, concept of pH, ionic product of water, buffer solution, common ion

effect, solubility of sparingly soluble salts and solubility products.

Unit : 8 Redox reactions

Electronic concepts of reduction - oxidation, redox reactions, oxidation number, balancing of

redox reactions.

Unit : 9 Solid state Chemistry

Classification of solids based on different binding forces: molecular, ionic, covalent and

metallic solids, amorphous and crystalline solids; unit cells in two dimensional and three

dimensional lattices, calculation of density of a unit cell, packing in solids, voids, number of

atoms per unit cell in a cubic unit cell, point defects, electrical and magnetic

properties.

Unit : 10 Chemical thermodynamics

Spontaneous processes, energy and spontaneity , entropy and second law of thermodynamics,

concept of absolute entropy, Gibbs energy and spontaneity, Gibbs energy change and

equilibrium constant.

Unit : 11 Solutions

Types of solutions, different units for expressing concentration of solution, mole fraction,

percentage (by volume and mass both), definitions of dilute solutions, vapour pressure of

solutions and Raoult’s Law, Colligative properties, lowering of vapour pressure, depression of

freezing point, elevation of boiling points and osmotic pressure, determination of

molecular masses using colligative properties, abnormal values of molecular

masses, van’t Hoff factor. simple numerical problems.

Unit : 12 Chemical kinetics

Rate of chemical reactions, factors, affecting rates of reactions –concentration,

temperature and catalyst, order and molecularity of reactions, rate law and rate constant,

differential and integral forms of first order reaction, half-life (only zero and first order)

characteristics of first order reaction, effect of temperature on reactions, Arrhenius theory -

activation energy, collision theory of reaction rate (no derivation).

Unit : 13 Electrochemistry

Conductance in electrolytic solutions, specific and molar conductivity, variation

of conductivity with concentration, Kohlrausch’s law, electrolysis and laws of electrolysis

(elementary idea), electrolytic and galvanic cells, emf. of a cell, standard electrode potential,

Nernst equation, concentration cell, fuel cells, cell potential and Gibbs energy, dry cell and

lead accumulator.

Unit : 14 Surface chemistry

Adsorption - physisorption and chemisorption, factors affecting adsorption of gases on solids,

catalysis, homogeneous and heterogeneous activity and selectivity, enzyme catalysis,

colloidal state, distinction between true solutions, colloids and suspensions; lyophillic,

lyophobic, multimolecular and macromolecular colloids, properties of colloids, Tyndal effect,

Brownian movement, electrophoresis, coagulation, emulsions - type of emulsions.

Unit :15 Hydrogen

Position of hydrogen in periodic table, isotopes of hydrogen, heavy water, hydrogen peroxidepreparation, reactions and structures; hydrides and their classification.

Unit :16 s-Block Elements (Alkali and Alkaline Earth metals):

Group 1 and Group 2 elementsElectronic configurations and general trends in physical and chemical properties, anomalous

properties of the first element of each group, diagonal relationship.

Preparation and properties of some important compounds, sodium carbonate, sodium

hydroxide, sodium hydrogen carbonate and industrial uses of lime and limestone, biological

significance of Na, K, Mg and Ca.

Unit :17 General principles and processes of isolation of elements

Principles and methods of extraction - concentration, reduction, (chemical and electrolytic

methods), and refining.

Occurrence and principles of extraction of Al, Cu, Zn and Fe.

Unit :18 p-Block Elements

Introduction to p-block elements

Electronic configurations and general trends in properties, viz. atomic sizes, ionization

enthalpies, electronegativity values, electron gain enthalpies and oxidation states across the

periods and down the groups in the p-block.

Unique behaviour of the top element in each group of the block - the covalency limit and

the p

p

- p

p

overlap in some molecules (e.g. N2

, O2

) and its consequences; general

trend in catenation tendency down each group.

Group-wise studyofthep-blockElements

Group 13 - In addition to the general characteristics as outlined above,

properties and uses of aluminium, nature of hydrides/ halides and oxides; Properties,

structures and uses of diborane boron halides, aluminium chloride, borax, boric acid and

alums.

Group 14 - In addition to the general characteristics; carbon – catenation, allotropic forms

(diamond and graphite), properties and structures of oxides; silicon - silicon tetrachloride, and

structures and uses of silicates, silicones and zeolites.

Group 15 - In addition to the general characteristics, the general trends in the nature and

structures of hydrides, halides and oxides of these elements. Preparation and properties of

ammonia, nitric acid, phosphine and halides of phosphorus, structures of the oxoacids of

phosphorus.

Group 16 - In addition to the general characteristics, preparations, properties and uses of

dioxygen, simple oxides, ozone; sulphur - allotropic forms, compounds of sulphur,

preparation, properties and uses of sulphur dioxide and sulphuric acid, industrial preparations

of sulphuric acid, structures of oxoacids of sulphur.

Group 17 - In addition to the general characteristics, occurrence, trends in physical and

chemical properties, oxides and oxoacids of halogens (structures only), preparation, properties

and uses of chlorine and hydrochloric acid, trends in the acidic nature of hydrogen halides.

Interhalogen compounds (structures only).

Group 18 - General introduction, electronic configurations, occurrence, trends in physical and

chemical properties and uses, - fluorides and oxides of xenon (structures only).

Unit :19 The d-and f-Block elements

General introduction, electronic configuration, occurrence and characteristics of transition

metals, general trends in properties of the first row transition metals –physical properties,

ionization enthalpy, oxidation states, ionic radii, colour, catalytic property, magnetic

property, interstitial compounds, alloy formation; preparationsandpropertiesofK2Cr

2O7

andKMnO4

.Lanthanoids - Electronic configuration and oxidation states, chemical reactivity and

lanthanoid contraction.

Actinoids - Electronic configuration and oxidation states.

Unit :20 Coordination compounds

Introduction to ligands, coordination number, colour, magnetic properties, and shapes;

IUPAC - nomenclature of mononuclear coordination compounds, isomerism , bondingvalence bond approach to the bonding and basic ideas of Crystal Field Theory, colour

and magnetic properties. Elementary ideas of metal - carbon bonds and

organometallic compounds, importance of co-ordination compounds (in

qualitative analysis, extraction of metals and biological systems).

Unit :21 Some basic principles of Organic Chemistry

- Tetravalence of carbon, hybridization ( s and p ), shapes of simple molecules, functional

groups:-C=C-, -C C- and those containing halogens, oxygen, nitrogen and sulphur;

homologous series, isomerism.

- General introduction to naming organic compounds-trivial names and IUPAC

nomenclature.

- Electronic displacement in a covalent bond; inductive effect, electromeric effect,

resonance and hyperconjugation. Fission of covalent bond: free radicals, electrophiles

and nucleophiles, carbocations and carbonanions.

- Common types of organic reactions: substitution, addition, elimination and rearrangement

reactions.

Unit :22 Hydrocarbons

Alkanes andcycloalkanes : classification of hydrocarbons, alkanes and

cycloalkanes,nomenclature and conformations of alkanes and cycloalkanes.

Alkenes and alkynes :Nomenclature and isomerism, general methods of preparation,

properties (physicaland chemical), mechanism of electrophilic addition, Markownikoff’s

rule,peroxide effect, acidic character of alkynes, polymerisation reactions.

Aromatic hydrocarbons :Benzene and its homologues, nomenclature, sources of aromatic

hydrocarbons (coaland petroleum), structure of benzene, chemical reaction of benzenemechanism of electrophilic substitution. Directive influence of substituents and their effecton

reactivity.

Petroleum and petrochemicals : Composition of crude oil fractionation and uses, quality of

gasoline, LPG, CNG, cracking and reforming,petrochemicals.

Unit :23 Purification and characterization of carbon compounds

- Purification of carbon compounds : filtration, crystallisation, sublimation, distillation

chromatography,

- Qualitative analysis : detection of nitrogen, sulphur, phosphorus and halogens.

- Quantitative analysis : estimation of different elements (H, N, halogens, S and P)

- Determination of molecular masses : Silver salt method, chloroplatinate salt method,

calculations of empirical and molecular formulas.

Unit :24 Organic compounds with functional groups containing halogens (X)

- Nature of C-X bond in haloalkanes and haloarenes, nomenclature, physical and chemical

properties, mechanism of substitution reactions, reactivity of C-X bond in haloalkanes and

haloarenes.

- Some commercially important compounds : dichloro, trichloro and tetrachloromethanes;

p-dichlorobenzene, freons, BHC, DDT, their uses and important reactions.Unit :25 Organic compounds with functional groups containing oxygen

Alcohols and phenols : Nomenclature, methods of preparation, physical and chemical

properties; chemical reactivity of phenols in electrophilic substitutions, acidic nature of

phenol, ethers: electronic structure, structure of functional group, nomenclature, important

methods of preparation, physical and chemical properties, some commercially important

compounds.

Aldehydes and ketones : Electronic structure of carbonyl group, nomenclature, important

methods of preparation, physical properties and chemical reactions, relative reactivity of

aldehydic and ketonic groups, acidity of a-hydrogen, aldol condensation. Connizzarro

reaction, nucleophilic addition reaction to >C=O groups.

Carboxylic acids : Electronic structure of-COOH, Nomenclature, important methods of

preparation, physical properties and effect of substituents on a-carbon on acid strength,

chemical reactions.

Derivatives of carboxylic acids : Electronic structure of acid chloride, acid anhydride, ester

and amide groups, nomenclature, important methods of preparation, comparative reactivity of

acid derivatives. Some commercially important compounds.

Unit :26 Organic Compounds with functional group containing nitrogen

- Structure, nomenclature of nitro, amino, cyano and diazo compounds.

- Nitro compounds – important methods of preparation, physical properties and chemical

reactions.

- Amines : primary, secondary and tertiary amines, a general awareness, important methods

of preparation, physical properties, basic character of amines, chemical reactions.

- Cyanides and isocyanides : preparation, physical properties and chemical reactions.

- Diazonium salts : Preparation, chemical reaction and uses of benzene diazonium chloride.

Some commercially important nitrogen containg carbon compounds, (aniline, TNT)

Unit :27 Polymers

Classification of polymers, general methods of polymerization-addition and condensation:

addition-free radical, cationic, anionic polymerization, copolymerisation, natural rubber,

vulcanization of rubber, synthetic rubbers, condensation polymers, idea of macromolecules,

biodegradable polymers.

Some commercially important polymers (PVC, teflon, polystyrene, nylon-6 and 66, terylene

and bakelite).

Unit :28 Environmental Chemistry

Environmental pollution – air, water and soil pollutions, chemical reactions in atmosphere,

smogs, major atmospheric pollutants, acid-rain, ozone and its reactions, effects of depletion of

ozone layer, green house effect and global warming – pollution due to industrial wastes, green

chemistry as an alternative tool for reducing pollution, strategy for controlling environmental

pollution.

Unit :29 Biomolecules

Carbohydrates : Classification, aldose and ketose, monosaccharides (glucose and fructose),

oligosaccharides (sucrose, lactose, maltose), polysaccharides (starch, cellulose, glycogen);

important simple chemical reactions of glucose, elementary idea of structure of pentose and

hexose.

Proteins : Elementary idea of a-amino acids, peptide bond, polypeptides, proteins; primary,

secondary and tertiary structure of proteins and quaternary structure (gualitative idea only),

denaturation of proteins, enzymes.Vitamins : Classification and functions

Nucleic acids : Chemical composition of DNA and RNA

Lipids : Classification and structure

Hormones : Classification and functions in biosystem.

Unit :30 Chemistry in everyday life

- Chemicals in medicines – analgesics, tranquilizers, antiseptics, disinfectants,

antimicrobials, antifertility drugs, antacids, antihistamins.

- Chemicals in food – preservativess, artificial sweetening agents.

- Cleansing agents – soaps and detergents, cleansing action.

- Rocket propellants : characteristics and chemicals used.