Bsc 3rd Year Physical Chemistry Imp Questions 2024

Today we are sharing bsc 3rd year physical chemistry important questions for the session 2024 in front of you. 

These questions are important for upcoming examinations. 

As you know the Third Year Physical Chemistry paper is important for science students. 

This is his/her final year paper. 

So, every student should be focused to clear it smoothly. 

We have taken these questions from the last 3 to 4-year questions bank. 

The main reason is behind this that we know that every year universities repeat the BSc third year physical chemistry questions. 

So, these questions will be helpful to prepare the physical chemistry 3rd year notes for coming examinations. 

The best way to prepare the notes is to read the complete chapter and start to write the answer in your words. 

This type of preparation helps you to memorize the answer for a long time. 

You should make the notebook of BSc final year physical chemistry separately. 

The best trick to memorize the answer, you should be writing the answer several times in a rough copy to use your memory. 

I would like to share one thing more, if you read the whole chapter in-depth then you can answer the physical chemistry mcqs very easily. 

Before starting to write the answer to these questions, you read your university syllabus. 

If the questions are not matching then use these physical chemistry BSc 3rd year questions as model paper questions. 

Let's Start. Third Year Physical Chemistry Important Questions

Bsc 3rd Year Physical Chemistry 1st Paper Important Questions

  • Write the characteristics of Electromagnetic waves.
  • Describe pure rotational spectra of the diatomic molecule. 
  • Define the principle of Heisenberg's uncertainty.
  • Which transitions are not possible in the UV range?
  • Which of the following will have minimum dipole moments:- (a) H2O (b) SO2 (c) HCL (d) NH3
  • What is the photoelectric effect? Derive Einstein's equation for the photoelectric effect.
  • What is a wave function? Explain the physical significance of wave function in short.
  • What is the major difference between Raman spectra and IR spectra?
  • Explain the concept of chromophores in the electronic spectrum.
  • Write short notes on the following:- (a) Non-radiative transition (b) Inter system crossing (c) Grothus Drapers Law 
  • Mention which four major physical properties of substances throw light on their molecular structures.
  • What do you understand by a dielectric constant? Explain in short.
  • Derive the Schrodinger wave equation and write its importance.
  • Explain the Linear combination of Atomic orbitals (LCAO) method for atomic orbitals.
  • Explain the necessary criteria for a molecule to exhibit IR Spectra.
  • Explain Maxwell-Boltzmann distribution and discuss the population of energy levels with its help.
  • Discuss characteristic properties of the Raman spectrum and Raman lines.
  • Explain the photophysical processes in the excited state of atoms with the help of the Jablonski diagram.
  • What is Quantum efficiency? Clarify the reasons for low and high quantum yield with suitable examples.
  • Explain the magnetic behavior of substances and diamagnetism and ferromagnetism in them.

Bsc 3rd Year Physical Chemistry 2nd Paper Important Questions

  • What is quinoline and isoquinoline structure?
  • What is polymerization reaction? Explain in detail.
  • Write short notes on the following:- (a) Pyrrole (b) Pyridine (c) Osazone formation
  • Write short notes on the following:- (a) Organo Metallic compounds (b) Grignard Reagent (c) Organolithium compounds
  • Explain the glucose ring structure.
  • What is the structure of lactose and sucrose?
  • Explain nylon 6/6 properties in detail.
  • Write short notes on the following:- Teflon, Methyl orange, Malachite Green
  • What is the phenolphthalein-making process?
  • What are the amino acid production processes?
  • Explain the following:- (a) UV spectrum (b) IR spectrum (c) NMR spectrum
  • What is the difference between DNA and RNA structures?
  • Explain acetophenone and p-methyl acetophenone differences.
  • What is meant by the acid-base reaction?
  • What are the components of Nucleic Acid?
  • What is the structure of Protein?
  • Write short notes on the following:- Dyes, Terylene
  • What is phenol and urea formal aldehyde reaction?
  • Write short notes:- (a) Acid value of oil (b) Saponification (c) Iodine value (d) hydrogenation of oil

Bsc 3rd Year Physical Chemistry 3rd Paper Important Questions

  • State Planck's Radiation law.
  • Calculate the degree of freedom for CO2 and H2O molecules.
  • Mention various types of polarization of a molecule in an electric field and write Clausius mossotti equation.
  • What happens to the energy of the particle in the one-dimensional box if the length of the box is made larger?
  • Explain Zero Point Energy.
  • What are Singlet and Triplet states?
  • Describe photosensitized reactions with examples. 
  • What is the Compton effect? Write the expression for Compton shift and explain it.
  • Explain the photoelectric effect and the de-Broglie hypothesis related to the dual nature of matter. 
  • Write notes on - (1) Optical activity (2) Diamagnetism and Paramagnetism
  • Derive the Schrodinger wave equation and mention the physical significance of the wave function.
  • How are the intensities of rotational spectral lines expressed?
  • Give a qualitative description of the non-rigid rotor.
  • What is Raman Spectrum? How will you explain Rayleigh, Stokes, and Anti-stokes lines in Raman Spectrum? Mention the usefulness of Raman Spectrum.
  • What is meant by Resonance Fluorescence? Discuss Fluorescence, Phosphorescence, and Non-Radiative processes on the basis of the Jablonski diagram.
  • Explain the following - (1) Ideal and non-ideal solution (2) osmosis and osmotic pressure (3) Reasons for abnormal molecular masses of solute in a solution and Van't Hoff factor.

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