Question

On complete combustion 0.246g of an organic compound

Answer 1

CHEMISTRY

0.246 g of an organic compound on complete combustion gave 0.198 g of carbondioxide and 0.1014 g of water, then the percentage composition of carbon and hydrogen in the compound respectively

1) 4.58, 21.95 2) 21.95, 4.58

3) 45.8, 2.195 4) 2.195, 45.8

December 26, 2019Sonakshi Chouhan

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ANSWER

The correct options is B

in the given question

mass of organic compound=0.246 g

mass of carbon dioxide= 0.198 g

mass of water= 0.1014 g

mass of water=0.1014 g

% of carbon:

4412×0.2460.198×100

=21.95%

% of Hydrogen

182×massofcompoundmassofH2O×100

182×0.2460.1014×100

=4.58%

Hope it helps

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