Time allowed: 3 hours
Max marks:100

Note:Attempt any Five Questions.



Q.1 A) Describe the concept of Quantum Theory of Radiation. What properties of radiation does it explain?

B) What is th difference between structures of H-atom, H-molecules and H-Molecule ion?

Q.2 A) State the 2nd Law of Thermodynamics. How is it related to Entropy? Explain with the help of equations.

B) Explain the terms : i) Intensive properties, ii) Extensive properties, iii) State


Q.3 A) What is Electrolysis? Describe Faraday's Law Electrolysis and explain with examples. Also give significance of these laws.

B) How measurement of pH is made?


Q.4 A) What is the group No. and atom No. of Nitrogen? What is its importance in air?

B) Name typical Oxt-acids of Nitrogen. Describe the preparation , Structure , and important chemical reactions of Nitric Acid.


Q.5 A) Name important ores of aluminum. Describe methods of preparation and purification of Aluminum.

B) What is Semi-Conductivity device? Discuss basic design of n-type and p-type semi conductivity devices.


Q.6 How to structures of Coordination Compounds are explained on the basis of molecular orbital theory? Explain with respect to [Co(NH2)6]3+ and [Co(F)6]3- which one is paramagnetic?


Q.7 A) What are water borne diseases? What remedial measures should be taken to minimize the risk of these diseases?

B) Describe types of water hardness. Give names of compounds that are responsible for these types.