What is the difference between Langmuir-Schaefer (LS) and Langmuir-Blodgett (LB) films?

Explain briefly the common methods for thin film deposition.

What are the common sources of neutron for neutron activation analysis (NAA)? What factors contribute to higher sensitivity in NAA? Briefly explain any one. 

Explain the magnetic properties of nanomaterials.

Give the classification of composites. Explain any one of the physical methods of preparation of nanomaterials.

Give the important applications of glass. What are the various oxides which plays an important role in firing of traditional ceramics?

What is PBT? Give its use.

List any four characteristics of artificial blood.

For cross linking by free radical polymerisation in hydrogels, name any two initiators, a cross linking agent and any two monomers.

What is artificial kidney?

 Explain how thermometric titrations are different than classical titrations. Discuss their advantages. 
(b) What is the principle of differential scanning calorimetry (DSC)? Draw the schematic diagram of a DSC instrument. 

Name four types of hydrogels based on four their composition.

 What is common source of errors in thermogravimetric analysis (TGA)? A mixture of CaO and  is analysed by TGA. The result indicates that mass of the sample decreases from  to  only between  and . Calculate the percentage of calcium carbonate in the mixture. 

Give the products formed by aerobic and anaerobic biodegradation of biodegradable polymers.

What are amperometric titrations? Draw common types of curves obtained in amperometric titrations. What will be the shape of the curve in bioamperometry for the titration of iodine by thiosulphate? 

Discuss the mechanism of biological degradation of polymers by microorganisms.