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Q.

Rama made the following set up to identify the product of combustion of substance X, Which is made up of only carbon and hydrogen.

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She observed that on heating X, the substance of A turns blue and of B turns milky. The products as identified by Rama on the basis of her observations are

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a

CO2 and H2O vapours

b

CO and H2O vapours

c

liquid H2O and H2O vapours

d

H2O and CO2 vapours

answer is A.

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Detailed Solution

When hydrocarbon reacts with oxygen, the formed two products will be CO2 and H2O. Water vapour turns anhydrous copper sulphate to blue colour and carbon dioxide turns lime water milky.

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