i. Give a chemical test to distinguish between N-methylethanamine and N,N-dimethyl ethanamine.
ii. Write the reaction for catalytic reduction of nitrobenzene followed by reaction of product so formed with bromine water.
iii. Out of butan-1-ol and butan-1-amine, which will be more soluble in water and why?

Explanation

(i) N-methyletahnamine is a secondary amine. When it reacts with benzenesulphonyl chloride, it forms N- Ethyl -N methyl sulphonamide while and N,N-dimethyl etahnanmine is a tertiary amine it does not react with benzenesulphonyl chloride.
(ii)
(iii) Butan-1-ol Alcohol forms stronger hydrogen bonds with water than formed by amine due to higher electronegativity of O in alcohol than N in amine