Hell-Volhard-Zelinsky reaction involves the replacement of an .............. Atom from the alkyl group of a monocarboxylic acid by a ........ Atom.

Hell-Vohlard Zelinsky reaction

The Hell-Volhard-Zelinsky reaction is used to

The atomic radii ............ on moving down a group.

The -OH group of an alcohol or of the -COOH group of a carboxylic acid can be replaced by -Cl using

(a) Ilustrate the following name reactions : (i) Hell - Volhard - Zelinsky reaction (ii) Wolff - Kishner reduction reaction (b) How are the following conversions carried out : (i) Ethylcyanide to ethanoic acid (ii) Butan - 1-ol to butanoic acid (iii) Methylbezene to benzoic acid

What are the reaction involved in the reductive removal of nitro group from an aromatic compound?