Give reasons: Electrophilic substitution in benzoic acids takes place at meta position.

Give chemical tests to distinguish between: Phenol and Benzoic acid

Give three reasons why aryl halides are less reactive towards nucleophilic substitution reaction?

Give reason that Benzoic acid would undergo Hell-Volhard-Zelinsky reaction or not and why ?

Give reasons: Carboxylic acids donot give the charactristic reactions of carbonyl group

Although phenoxide ion has more numbers of reasonating structures than carboxylate ion, carboxylic acid is a stronger acid that phenol. Give reason.

Give reason that propanoic acid would undergo Hell-Volhard-Zelinsky reaction or not and why:

Two groups (A and B) of bean plants of similar sizes and same leaf area were placed in identical conditions. Group A was exposed to light of Wavelength 400-450 nm and Group B to light of wavelength of 500-550 nm. Compare the photosynthetic rate of the two groups giving reason.

An optically active amide (A)C_5H_(11)NO on acid hydrolysis gives an acid and NH_3 . When (A) is treated with bromide and alkali a compound is obtained which one treatment with nitrous acid gives an optically active alcohol and nitrogen. The alcohol gives positive iodoform test. What is the structure of A and show the reactions involved.