Chemistry · 2025
JEE Main · 8 April 2025, Shift 2 · Q62
On combustion 0.210 g of an organic compound containing C, H and O gave 0.127 g H_2 O and 0.307 g CO_2. The percentages of hydrogen and oxygen in the…
On combustion $\displaystyle 0.210$ g of an organic compound containing $\displaystyle \mathrm{C}, \mathrm{H}$ and O gave $\displaystyle 0.127 \mathrm{~g} \mathrm{H}_2 \mathrm{O}$ and $\displaystyle 0.307 \mathrm{~g} \mathrm{CO}_2$. The percentages of hydrogen and oxygen in the given organic compound respectively are:
Official answer
From NTA’s final answer key for this paper.
(4)
$\displaystyle 6.72, 53.41$
All Purification and Characterisation of Organic Compounds questionsPractice Purification and Characterisation of Organic Compounds →
More from Purification and Characterisation of Organic Compounds
- Complete combustion of X g of an organic compound gave 0.25 g of CO_2 and 0.12 g of H_2 O. If the \% of carbon is 25 \% and of hydrogen is 4.89 %,…2026
- The purification method based on the following physical transformation is: (X) Solid → Heat (X) Vapour → Cool (X) Solid2025
- An organic compound weighing 500 mg, produced 220 mg of CO_2, on complete combustion. The percentage composition of carbon in the compound is ____…2025
- In Dumas' method 292 mg of an organic compound released 50 mL of nitrogen gas (N_2) at 300 K temperature and 715 mm Hg pressure. The percentage…2025
- In the sulphur estimation, 0.20 g of a pure organic compound gave 0.40 g of barium sulphate. The percentage of sulphur in the compound is ____ ×…2025
- In Carius method for estimation of halogens, 180 mg of an organic compound produced 143.5 mg of AgCl. The percentage composition of chlorine in the…2025
- Given below are two statements: Statement I: In Lassaigne's test, the covalent organic molecules are transformed into ionic compounds. Statement II:…2025
- In Carius method of estimation of halogen, 0.25 g of an organic compound gave 0.15 g of silver bromide (AgBr). The percentage of Bromine in the…2025
JEE Main 2025 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.