TIME ALLOWED: THREE HOURS
PART-I(MCQS): MAXIMUM 30 MINUTES
MAXIMUM MARKS = 20
MAXIMUM MARKS = 80
NOTE: (i) Part-II is to be attempted on the separate Answer Book.
(ii) Attempt ONLY FOUR questions from PART-II. ALL questions carry EQUAL marks.
(iii) All the parts (if any) of each Question must be attempted at one place instead of at different
(iv) Write Q. No. in the Answer Book in accordance with Q. No. in the Q.Paper.
(v) No Page/Space be left blank between the answers. All the blank pages of Answer Book must
(vi) Extra attempt of any question or any part of the question will not be considered.
(vii) Use of calculator is allowed.
Describe the assumption of Bohr’s atomic model. Based on Bohr’s calculation,
establish the energy expression of the rotation of electrons in Hydrogen like
Derive de-Broglie’s equation for the dual nature of matter. Apply this equation
for microscopic and macroscopic properties of substances.
What are the postulates of Quantum Mechanics?
What is Third law of thermodynamics? How it is used to determine the
entropies of substance.
Discuss the isothermal expansion of a gas and derive the equation for the work
done due to expansion of a gas.
Explain the law of corresponding states.
Deduce the rate expression for 2nd order reaction where both the concentration
terms are same. What is the half-life period for the 2nd order reaction?
What is activation energy? How it can be determined?
Write a note on Transition state theory of reaction rates.
Develop a relation among phase, component and degree of Freedom. Draw a
complete diagram for water system.
What is catalysis? Differentiate between positive and