Question

describe in detail the differences in solubility between heated and non heated sucrose. what evidence of a chemical reaction is present

Answer 1

Initially, upon continuosu slow heating, sucrose melts into a clear liquid and decomposes into glucose (C6H12O6) and fructose (C6H12O6).

When more heat is provided, temperature increases, then glucose and fructose molecules begin to lose water (undergo dehydration) and then the bonds between carbon atoms begin to break. So the very nature of sucrose is lost and since all hydroxy groups of sucrose are lost its solubility in water is lost

So sucrose which is normally soluble in water due to its hdyrogen bonding of many -OH groups with water, while heated sucrose which has lost its chemical groups, is no more soluble in water