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Volume of Gases and Number of Moles

A carbon comp...

Question

A carbon compound 'P' on heating with excess conc. $H_{2} S O_{4}$ forms another carbon compound 'Q' which on addition of hydrogen in the presence of nickel catalyst forms a saturated carbon compound R. One molecule of 'R' on combustion forms two molecules of carbon dioxide and three molecules of water. Identify P, Q and R and write chemical equations for the reactions involved.

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Solution

P = Ethyl alcohol

Q = Ethene

R = Ethane

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