(a) What are essential amino acids?
(b) A carbohydrate `(C_(12)H_(22)O_(11))` is boiled with dil.`H_(2)SO_(4)` in alcoholic solution to form two hexoses with the same chemical formula. Identify the carbohydrate and the two hexoses. Give necessary chemical equations.
(c) What is denaturation of protein?

The reaction of concentrated sulphuric acid with carbohydrates (C_(12)H_(22)O_(11) is an example of

Complete the reactions : C_(12)H_(22)O_(11) + H_(2)SO_(4) ("conc.") →

A carbohydrate is treated with alpha -naphthol and cone. H_2SO_4 . What colour will be formed at the junction of two liquids?

An organic compound A has the molecular formula C_(2)H_(4)O_(2) and is acidic in nature. On heating with ethanol and conc. H_(2)SO_(4) vapours with pleasant and fruity smell are given out. What is the compound A and what is the chemical equation involved in this reaction?

An organic compound 'A' is a constituent of antifreeze and has the molecular formula C_(2)H_(6)O . Upon reaction with alkline KmNO_(4) , the compound 'A' is oxidised to another compound 'B' with formla C_(2)H_(6)O_(2) . Identify the compounds 'A' and 'B'. Write the chemical equation for the reaction which leads to the formation of 'B'.

(a) What are essential and non-essential amino acids ? (b) Give chemical name of vitamin-A. (c) Name the enzyme which converts glucose into ethanol.

What is the ratio of molecules between 1 mole of H_(2)O and 1 mole of sucrose (C_(12)H_(22)O_(11)) ?