Write down the methods of preparation and uses of benzoic acid.
[6 marks]Halogens are deactivators but o, p- directors. Justify with suitable examples.
[5 marks]Write the principle and significance of Iodine number.
[5 marks]Write a short note Fries Rearrangement and Carbylamines reaction.
[6 marks]Write the mechanism Friedal Craft alkylation with its limitations.
[5 marks]Enumerate the influence of substituents on acidity of Aromatic acids.
[5 marks]Convert these followings: I. Phenol to Phenyl acetic acid II. p- cresol to p-NO benzyl tolyl ether2 III. o- cresol to N- nitroso 2- methyl Phenol
[6 marks]Describe in detail about Bayer’s strain theory with its limitation
[5 marks]Write an informative note on Huckel’s rule of aromaticity.
[5 marks]Comment these followings: I. Why Benzene undergoes Substitution reaction instead of addition reaction? Justify II. Why reactivity of NO benzene is slow in comparison to Benzene.2
[6 marks]Why animal fats are solids and Vegetable oils are Liquids? Justify with examples
[5 marks]Describe three different reactions of fatty acids with examples.
[5 marks]What happens when Anthracene reacts with these following? Write the reaction. I. Maleic anhydride II. Na/C H OH25 III. Na Cr O227
[6 marks]Write down any five methods of Preparation of Phenol
[5 marks]Write down methods of Preparation of Naphthalene. Q. 6 (a) Convert these followings: I. Chloro benzene to Benzene II. Styrene to 2-Phenyl Ethanol III. Benzene to m- nitro benzaldehyde
[6 marks]Write the synthesis and utility of Diazonium salts.
[5 marks]What do you mean by Rancidity? Explain in detail with example.
[5 marks]Describe the various qualitative tests of phenol.
[6 marks]Write down the structure and uses of these followings:
[5 marks]DDT b) Saccharin c) Diphenylmethane d) Phenanthrene e) Cresol
[ marks]Write a short note on Sachse Mohr’s theory.
[5 marks]