Question

Complete combustion of 750 g of an organic compound provides 420 g of CO₂ and 210 g of H₂O. The percentage composition of carbon and hydrogen in organic compound is 15.3 and ______ respectively. (Round off to the Nearest Integer).

पर्याय

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Answer 1

Complete combustion of 750 g of an organic compound provides 420 g of CO₂ and 210 g of H₂O. The percentage composition of carbon and hydrogen in organic compound is 15.3 and 3 respectively.

Explanation:

According to the Liebig method,

% of H-element = `2/18 xx (("Mass of H"_2"O")/("Mass of compound")) xx 100`

= `2/18 xx (210/750) xx 100`

= 3.11

≈ 3