Question

13. Product obtained when sugar is heated.​

Answer 1

When sugar (glucose) is heated , blacked carbon (charred) and water is produced.

• When only sugar is said, it can be assumed that the question is mentioning about glucose.

• Now, glucose is a optically active monosaccharide which contains poly-hydroxy aldehydes groups.

• Now, if you try to analyse its elementary components, it contains carbon, hydrogen and oxygen in ratio of 2:1.

• Thats why , whenever glucose is heated, water is evaporated and the black, charred carbon is left behind.

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• If complex sugars like sucrose is provided then upon heating sucrose will break down to give glucose and fructose.

• Lactose when heated will break down to give glucose and galactose.

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