Technical Chemistry

 Discuss the synthesis of :

  i) BHC

Outline the synthesis of:

i) Methyl orange 

Outline the synthesis of:

i) Alizarin

Distinguish between :

i) Carbocations and Carnonions

Distinguish between :

ii) Inductive effect and Mesomeric effect.

Illustrate the mechanism of the following with an example:

i) SN₂-reaction and

Illustrate the mechanism of the following with an example:

ii) E₁ - reaction.

Briefly discuss the mechanism of Friedel - craft methylation of Benzene using CH₃. Cl (Methyl Chloride). 

What is meant by, orientation influence? Why nitration of nitrobenzene gives meta dinitrobenzene? Explain the mechanism. 

What are insecticides? Give an account on classification of insecticides with are example for each.

Discuss the modern theory of color and constitution by de localization of  electrons. 

Discuss the synthesis of :

 ii) Parathion. 

  Define the following:

   i) Saponification value

  Define the following:

   ii) Iodine value

Define the following:

 iii) Acid value.  

 Explain the manufacture of vanaspathi. 

What are Soaps? How are they classified? 

Differentiate with an example:

i) Anionic detergents and cationic detergents. 

Differentiate with an example:

ii) Oils and fats.

What is BET equation? Discuss its applications for determining the surface area of solids.

The vapour pressure of pure benzene at a certain temperature is 200mm at the same temperature vapour pressure of the solution containing 2g of non volatile solute in 78g of benzene is 195mm of Hg. What is the molar mass of the solute.

What is meant by elevation in Boiling point? Derive an expression for elevation in BP and molecular weight of a non-volatile solutes. 

12g of Glucose is dissolved in 100g of water raised the B.P of 0.345°C. Calculate the molar elevation constant (K_b) of solvent. 

Distinguish between VBT and MOT.

Explain the formation of covalent  - bond and  - bonds in accordance with MOT. 

Draw the molecular orbital configuration of H₂, and He₂ molecules. Predict the bond order and indicate the stability of the molecules. 

Differentiate :

i) Physisorption and chemisorptions.

Differentiate :

ii) Adsorption isotherm and Isobar.

Define Osmotic pressure. Explain the experimental measurement of osmotic pressure and determination of molecular weight of a non-volatile solute by Berkely und Hartely method.

Give an account on transition state theory of surface reactions.

Define  with a suitable example :

i) Homogeneous catalysis 

Define  with a suitable example :

ii) Heterogeneous catalysis

Define  with a suitable example :

ii) Autocatalysis.

Explain-any three characteristics and applications of catalysis with an example for each.

Discuss the mechanism of Heterogeneous catalysis.

Explain the mechanism of acid-base catalysis.

What are Dyes? Mention their requisites. How are dyes classified on the basis of structure?Explain.