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JEE Main 20253 AprilMorning Shift
Exam
JEE Main
Year
2025
Date
3 April
Shift
Morning Shift
Subject
Chemistry
Chapter
Hydrocarbons

JEE Main 2025 · 3 April · Morning Shift · Chemistry · Hydrocarbons

0.5 g of an organic compound on combustion gave 1.46 g of CO_2 and...

0.5 g of an organic compound on combustion gave 1.46 g of CO2\mathrm{CO}_2 and 0.9 g of H2O\mathrm{H}_2 \mathrm{O}. The percentage of carbon in the compound is _______. (Nearest integer) [Given : Molar mass (in gmol−1\mathrm{g} \mathrm{mol}^{-1}) C:12,H:1\mathrm{C}: 12, \mathrm{H}: 1, O: 16]

Correct answer

0

Step-by-step solution

Organic →CO2\rightarrow \mathrm{CO}_2
Compound
Applying POAC on ' C '
(mole) of ' C ' in compound =nCO2×1=\mathrm{n}_{\mathrm{CO}_2} \times 1
So mass of ' C ' in compound
=1.4644×12=\frac{1.46}{44} \times 12
So, %\% of ' C ' in compound =1.4644×120.5×100=\frac{1.46}{44} \times \frac{12}{0.5} \times 100
=79.63=79.63
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