### M.sc 1st Year Chemistry Important Questions 2023

In this post, you will find m.sc 1st year chemistry important questions chapter-wise for 2023.

Write these questions in your notebook.

By writing their answers, you can prepare good msc 1st year chemistry notes.

These notes will be helpful in getting good marks in your upcoming exams.

You can also prepare for msc chemistry entrance exam with the notes of these questions.

To solve the chemistry question, first of all, read the concerned chapter completely from the textbook.

Understand the concept of that lesson.

By following this process, you will be able to remember the answers to the questions easily and for a long time.

Your time will be saved even in their revision.

Therefore, write the answers to these carefully.

The pattern of these questions has been decided on the basis of the m.sc chemistry 1st year previous year question paper.

FAQ

Question - What are the jobs after MSc Chemistry?

Answer - You can try for these jobs - pharmacologist, science lab technician, production officer, chemist, R&D trainee, biotechnology, chemical engineer, toxicologist, content writer, researcher, quality assurance officer, and agriculture.

#### Msc Chemistry 1st Year Question Papers

Physical Chemistry Questions For Msc

• Explain Boltzmann Distribution Law. Derive its mathematical equation and general form.
• Describe Gibb's-Duhem equation thermodynamically and show how this equation is useful?
• What do you mean by the term ionic strength? Explain the dependence of the activity coefficient on ionic strength?
• Explain the following terms- (a) Entropy is a state reaction (b) The relation between the chemical potential and composition.
• What are the postulates of Lindermann's theory of unimolecular reaction? Derive the mathematical formula for the Lindermann mechanism.
• Write notes on the following- (a) Flash Photolysis (b) Polarography (c) What do you mean by reactions with orders (1, 2) and (2, 1).
• Derive the activated Complex Theory and Compare it with Arrhenius's Theory.
• Define and derive the term 'Partition function'. Show the relation between the partition function and the internal energy.
• The hydrolysis of an ester in presence of dilute acid follows the first order while that in the presence of dilute alkali follows second-order kinetics, explain.
• Derive the equation of Boltzmann Distribution Law?
• Explain the following- (a) An ensemble and types of ensembles (b) Corresponding distribution law by Lagrange's method of undetermined multipliers (c) Tafal Plot (d) Polarography (e) Overpotential
• What is half-wave potential? What is its significance?
• Express the term molecular interpretation of the second law and third law of thermodynamics. Give at least one example in each case.
• What is the basic difference between additive polymer and condensation polymer? Explain by means of one example for each.
• What are macromolecules? What methods are employed for the determination of the molecular weights of polymer? Describe the scattering method of its determination.
• What do you mean by the term ionic strength? Explain the dependence of the activity coefficient of ionic strength.
• What do you understand by the term over potential?
• Write notes on- (a) Oxygen overvoltage and (b) Hydrogen overvoltage.
• What is half-wave potential? What is its significance?

Msc Inorganic Chemistry Question Paper

• What is VSPER theory?
• Draw a molecular orbital diagram of Co2 and CH 2 molecules. Explain their configuration bond order, stability, and magnetic property.
• Draw the molecular orbital diagram following the parameters of Bond order stability and magnetic properties- (a) No 2 (b) Co 2.
• Determine the ground state term symbol and Free Ion Term for the d2, d4, and d5 systems. Determine also their no. of microstates.
• What are Lanthanide contractions? Compare it with Actinide Contraction?
• What are Boranes? How they are classified? Describe the structure and bonding in any four of them.
• What are Lanthanides? Write the electronic configuration of all 14 lanthanide elements.
• What are the consequences of Lanthanide Contraction?
• Construct the character table of C2V and C3V.
• Determine the term symbol, ground state and no. of microstates of Cu++, Mn+2, and Cr+.
• Explain why the molecule of Co2 and CH 4 possess zero dipole moment.
• Describe the shell model and liquid drop model of a nucleus.
• Write a note on the G-M counter.
• Write short notes on the Bent rule.
• Describe the ways in which Actinides resemble their counterpart in Lanthanides? Give an account of the Chemistry of Neptunium and Plutonium? How are Neptunium and Plutonium Synthesized?
• Explain the following- (a) Nuclear reactions and their types (b) Nuclear fission and manufacturing of atom bomb.
• What are Boranes? How they are classified? Describe the structure and bonding in any four of them.
• Write notes on the following- (a) Carboranes (b) Application of radioisotopes in medical sciences (c) Metal-metal multiple bonding.

Msc Organic Chemistry Question Paper

• What is Aromaticity? What are the salient features of Eric Huckel's theory of aromaticity with mentioning of Huckel's Rule? Will cyclooctatetraene show an aromatic character?
• Explain the mechanism of the Bimolecular Elimination reaction with suitable examples.
• What do you understand by Carbocation and Carbonion? Explain their stability.
• What are Carbenes? How are they generated? Give the important reactions of Carbenes.
• Explain the mechanism of the following reaction- (a) Benzoin Condensation and (b) Gattermann-Koch Reaction.
• Explain the aromaticity and give details of Huckel molecular orbital theory.
• Explain with the mechanism that electrophilic substitution occurs more easily in Toluene than in benzene?
• Explain the conformations of Dimethyl Cyclohexanes and discuss the effect of conformation on chemical reactivity.
• Which of the following compound will show aromaticity- (i) Benzene, (ii) Cyclo pentadiene, (iii) Pyrrole.
• Explain why aniline is more reactive than acetanilide in electrophilic substitution.
• What do you mean by aromatic nucleophilic substitution? Explain unimolecular Nucleophilic aromatic substitution reaction.
• Chlorobenzene is far less reactive than aniline in electrophilic substitution although chlorine and nitrogen have almost the same electronegativity.
• Explain the conformation of cyclohexane and also discuss the effect of conformation on chemical reactivity.
• Explain the following - (a) –NH2 group is an ortho and para-directing group (b) –NO2 group is the meta-directing group (c) Halogens are ortho and para-directing group.
• Explain the mechanism of Elimination Bimolecular reaction with suitable examples.
• Write notes on the following- (a) Aldol addition reaction (b) Benzoin Condensation (c) Perkin Reaction (d) Mannic reaction.
• Explain the following- (a) Halogens are the ortho and para directing group (b) Diazonium coupling reaction (c) NO2 group is the meta-directing group.
• Write short notes on the following mechanism- (a) Perkin reaction (b) Aldol addition reaction (c) Michael reaction (d) Mannic reaction.
• Discuss with suitable examples- (a) Plane of symmetry (b) Reflection symmetry
• Explain the following- (a) Hyper Conjugation (b) Tautomerism (c) Element of symmetry.

Solid State Chemistry, Quantum Chemistry Questions

• Calculate the average distance of the electron from the nucleus of a Hydrogen atom in the 2s configuration.
• What are perfect and imperfect crystals? Write notes on the cohesive energy.
• What are intrinsic and extrinsic semiconductors? Write a short note on the doping of a crystal. What is the application of semiconductors? What are doping semiconductors?
• Derive the Schrödinger wave equation with respect to space. Derive the equation also for H-atom.
• State Hermitian operator. Discuss its two important properties and explain them.
• What is Eigen function and Eigenvalue?
• Write notes on the following- (a) Zero-point energy (b) Basic assumption of the Hückel theory of conjugated system.
• Determine the term symbol and no. of microstates of following & configuration- (a) d2 system (b) d5 system (c) p2 system (d) d7 system
• Hybrid orbitals have 20% and 80% p-character. Give the expression for the hybrid orbitals and determine the angle between them.
• Write notes on the following- (a) the Difference between conductor, semi-conductor, and non-conductor (b) the Pauli exclusion principle (c) Hunds rule of maximum spin multiplicity.
• How the crystal planes are characterized? How do Miller indices help in determining the interplanar distance? Calculate the interplanar distances of b.c.c. and f.c.c. crystals.
• What is the maximum electron density in H–atom in the 2s and 2p states?
• Discuss the postulates of Quantum mechanics.
• Derive the Schrödinger wave equation with respect to space.
• Discuss solid state defect with special reference to (a) Schottky defect (b) Frenkel defect
• Explain the following terms- (a) Perfect and Imperfect Crystals (b) Non-conductor and Semi-conductor (c) Superconductor.
• Explain any Two terms of the following- (a) Hybridisation and Molecular Geometry (b) Pauli Exclusion Principle (c) Operators.

Coordination Chemistry Important Questions

• Calculate the free ion terms, ground term, and no. of microstates for Fe+3, Sc++2, and Cu+1 ion.
• How does the d-orbital split in an octahedral crystal field?
• S and P terms do not split in a crystal field but D and F term split. Explain.
• Explain Russel and Saunder's coupling scheme. Calculate free ion ground state term and no. of microstates for the d2 and d9 systems?
• Explain the following- (a) Labile and inert complex (b) Acid hydrolysis reaction.
• Define stepwise and overall stability constant. How they are related to each other?
• Discuss the reaction mechanism of substitution reaction in the octahedral complex along with the factors that cause complications.
• Write notes on the following- (a) Labile and inert complex (b) Trans effect.
• Explain magnetic moment and magnetic susceptibility and establish a relationship between them.
• Explain the multiplet width. Explain the population of J level in context to KT.
• Write notes on the following- (a) Limitation of Crystal Field Theory (b) John and Teller Effect (c) Quenching of orbitals.
• Explain magnetic moment and magnetic susceptibility and establish a relation between them.

Chemistry Biomolecules Important Questions

• What is a carbohydrate? Establish the ring structure of glucose.
• What are amino acids? Discuss the chemical reaction of amino acids involving both functional groups present in the molecule.
• Discuss and derive the structure of atropine? Establish its structure by synthesis.
• Write down the structure and synthesis of the following- (a) Adenine (b) Guanine (c) Uracil
• What do you understand by the term terpenoids? Explain isoprene and special isoprene rule and their exception.
• What are alkaloids? How are they classified? Give details of Quinine.
• How will you establish the Primary, Secondary, and Tertiary structures of a protein?
• What are Glycosides? Give a classification of glycosides. Determine the structure of glycosides by their synthesis?
• Discuss the degrative and synthetic evidence leading to the structure of nicotine.
• How you will carry the following conversions- (a) Glucose to Fructose (b) Citral to Cyclocitrals (c) Fructose to Glucose
• Name the important lipids. Write details about the biological functions of Lipids and their metabolism.
• Discuss and derive the structure of atropine. Establish its structure by synthesis.
• Discuss the structure of DNA. In what ways the structure of DNA differs from that of RNA?
• Write notes on the following- (a) Enzymatic hydrolysis of Nucleic acid (b) Inversion of sucrose (c) Peptides linkage (d) Blanc rule.
• What is the relation between the following set? - (a) A nucleotide and nucleoside (b) Ribose and Deoxyribose (c) Fructose and Glucose.
• Name the products of the reaction of D-glucose with the following reagents- (a) NH2OH (b) Br2/H2O (c) CH3I/Ag2O.

Reaction Mechanism Super Molecular Chemistry Important Questions

• Describe the inner and outer sphere mechanisms of electron transfer reaction in complexes. Give examples.
• Define photo substitution and explain with a suitable example. Explain photo-oxidation and photo reduction theory.
• What are non-complimentary reactions?
• Mention substitution reaction which undergoes without Cleavage of the metal-ligand bond. Give mechanisms with suitable examples.
• Explain association and dissociative mechanism. Give examples?
• Why do certain electron transfer reactions proceed by the inner sphere mechanism and some by the outer sphere mechanism? Explain.
• Explain the S N CB mechanism by giving examples.
• Explain the following- (a) No. of ground state term and microstates in Co+2 ion (b) Magnetic Prosperities of Lanthanides (c) Mixed Valence Complexes and other electron transfer models.
• What do you mean by the prompt and delayed photochemical reaction? Give examples.
• Give two general methods of preparation of metal alkoxide. Draw the structure of dimeric and transfer alkoxides.
• Define photo substitution and explain with suitable examples.
• Describe the energy state of the octahedral Chromium(III) complex and the associated photochemical process.
• Write special features of anionic bonding. Write the synthesis of crown ether?
• Explain the isomerization of octahedral complexes and intermolecular rearrangement?
• Write in detail about the following- (a) Metal alkoxides (b) Acetylacetonate complexes
• Describe the pathway of optical inversion and isomerization.
• Write notes on the following- (a) Schiff base metal complexes (b) SNCB mechanism (c) Photochemical reaction (d) Reaction of geometrical and optical isomers
• Write notes on Helicate, Rosettes, and Cage in Supramolecular chemistry.
• How the supramolecular catalysts are similar to enzyme catalysts? What are the differences between them?
• Explain the following- (a) the Bailar twist mechanism (b) the Marcus-Husch theory.

Natural Products Exam Questions

• What are Terpenoids? How are they classified? Establish the structure of Phytol.
• Establish the structure of Vitamin B12. Give the synthesis of Vitamin B12.
• Write shorts notes on the following- (a) Morphine (b) Quinine
• Discuss the structure of Phytol.
• What are Hormones? Draw the structure of cholesterol, cholestanol, and cholestanone.
• How flavone is related to isoflavone? Give a critical account of the structure determination and synthesis of isoflavone.
• Discuss biosynthesis of isoflavones.
• What are Vitamins? Discuss the classification of vitamins. Write the important sources of vitamins and mentioned deficiency diseases.
• Discuss the structure of Vitamin C and its synthesis.
• Discuss the point linkage between quininic acid and mesoquenene of quinine.
• Discuss the structure of abietic acid and conformed by synthetic method.
• What are porphyrins? Write the degrative and synthetic evidence for the determination of the structure of Haemin.
• Write notes on the following- (a) the Presence of phenanthrene nucleons in morphine (b) the Structure of cholesterol and colostral (c) Narcotine.
• Establish the structure of Vitamin B 2. Give the synthesis of Vitamin B 2.
• Discuss the structure of abietic acid and conformed by synthetic method.
• Write the Wood Synthesis of Chlorophyll-a and also give degradative evidence for the elucidation of the structure of Chlorophyll-a.
• Explain the following- (a) Synthesis of Chlorophyll-a (b) Structure of Eestron (c) Santonin.
• Discuss the point linkage between quininic acid and menaquinone of quinine.

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