Question

When you heat few crystals of sugar in a dry test tube what do you obtain and why

Answer 1

Sugar is a complex compound which on heating undergoes decomposition reaction, water gets evaporated thereby leaving behind black carbon’ in the test tube.

IF IT IS CORRECT MARK BRAINLIEST ✌️

Answer 2

When you heat few crystals of sugar in a dry test tube what do you obtain and because
(i) A teacher took few crystals of sugar in a dry test tube and heated the test tube over flame. The colour of sugar turned black.
(ii) Blue crystals of copper sulphate on heating in a dry test tube become colourless.
(iii) Green colour of FeSO4 • 7H2O crystals on heating, change colour.