SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Reactant
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Product
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Either A or B
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None of the above
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Detailed explanation-1: -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.
Detailed explanation-2: -What is left over from burning sugar? If sugar burns completely (complete combustion) then the products of the reaction are carbon dioxide and water.
Detailed explanation-3: -The equation for the combustion of glucose is: C 6 H 12 O 6 ( s ) + 6 O 2 ( g ) → 6 CO 2 ( g ) + 6 H 2 O ( g ) .
Detailed explanation-4: -Glucose (C6H12O6) burns in oxygen to produce carbon dioxide and water vapor as described in the following equation: C6H12O6 + 6O2 → 6H2O + 6CO2.