Explain the salient features of Environmental Protection Act, 1986.

Explain the significance of National Air Quality Monitoring Programme.

Discuss the fundamental rights provisions pertaining to environment in the Indian Constitution.

a) Determine the value of the constant a for which the vector field 

 is incompressible.

b) Show that for any vector field \bar 

(a) Derive the expression for distribution coefficient when the solute dissociates is one of the solvents.

(b)  Write any two applications of solvent extraction.

(a)Give the thermodynamic derivation of distribution law.    

Discuss the fractional distillation for a mixture of benzene and toluene using a suitable diagram.

a) Obtain the derivative and the unit tangent vector for a vector function

b) For a scalar field    where n is a non-zero real constant, show that 

b) Taking suitable example write the mechanism of Mannich reaction.

 and 

Justify your answer.

Arrange the following carbonyl compounds in the order of their favourability for formation of nitriles:

b) How will you prepare tert-butylmethyl ether?

a) How will you perform following conversions?

i) Phenol to p-bromophenol ii) 1,3-dihydroxyphenol to 1-(2,4-dihydroxyphenyl)ethanal

b) Write the chemical equation and mechanism of pinacol-pinacolone rearrangement.

a) In normal reaction conditions, chlorobenzene does not react with NaOH, but 1- chloro-4-nitrobenzene reacts with NaOH in these conditions. Explain.

b) Which one of the following would undergo faster  reaction? Explain  or 

a) Explain why Nitro group is meta-directing deactivator?

b) Write the mechanism of Friedel-Craft’s alkylation. What are its limitations?

a) List various methods of preparation of benzene and also write one chemical reaction for each case.