Which of the following is correct for carbohydrates?
(a) They act as biofuels
(b) They are reserve food materials
(c ) They are constitunents of biomolecues,
(d) They act as the chief structural material

Options

A. All carbohydrates possess the general formula `C_(x) (H_(2)O)_(y)`
B. All carbohydrates are crystalline solids with a sweet
C. All carbohydrates are soluble in water
D. All carbohydrates answer the Molisch test

Answer

D

Explanation

Molisch's test is general test for carbohydrates. The carbohydrates is dissolved in water alcoholic, 1-naphthol added, concentrated `H_(2) SO_(4)` acid poured down the side of the tube. A deep violet ring is fomed at the junction of the liquids.