white sugar turns black when heated
give reason
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Explanation:
Sugar is made of carbon, hydrogen and oxygen atoms. When heated over a candle, these elements react with the fire to turn into a liquid. The heat causes the sugar's atoms to combine with the oxygen in the air, forming new groups of atoms. Energy is released in this chemical reaction in the form of smoke and black soot.
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Answer: A process known as caremelisation
Explanation:
The polymers, divided into three groups – caramelans (C24H36O18), caramelens (C36H50O25), and caramelins (C125H188O80) – are responsible for the browning of sugar. On the other hand, volatile compounds like diacetyl, Hydroxymethylfurfural, diacetyl etc. are responsible for the characteristic ‘caramel smell’.
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