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QJEEM21Ch909b: JEE Main 2021 Chemistry - Class 11 JEEM21Ch909b Solution: Complete combustion of 750 g of an organic compound provides…

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).

Step-by-Step Verified Solution

18 gm H2O ⇒\Rightarrow 2 gm H2

210 gm ⇒\Rightarrow 218×210{2 \over {18}} \times 210

= 23.33 gm H2

So, % H2 = 23.33750×100{{23.33} \over {750}} \times 100 = 3.11% ≈\approx 3%

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