State:

(a) Kohlrausch law of independent migration of ions.

(b) Faraday's first law of electrolysis.

Classify the following sugars into monosaccharides and disaccharides:

Galactose, Glucose, Lactose and Maltose

(a) Carry out the following conversions:

(i) Nitrobenzene to Aniline

(ii) Aniline to Phenol

OR

(b) (i) Write a chemical test to distinguish between Dimethyl amine and Ethanamine.

(ii) Write the product formed when benzene diazonium chloride is treated with KI.

Show that in case of a first order reaction, the time taken for completion of $99 \%$ reaction is twice the time required for $90 \%$ completion of the reaction. $(\log 10=1)$