Qualitative Analysis of Organic Compounds - Practice Questions & MCQ
Edited By admin | Updated on Sep 18, 2023 18:35 AM | #JEE Main
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12 Questions around this concept.
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EASYOn complete combustion, 0.246 g of an organic compound gave 0.198 g of $\mathrm{CO}_2(\mathrm{~g})$ and 0.1014 g of water. The $\%$ of hydrogen in the compound is
Match List-I with List-II -
| List-I (Separation of) |
List-II (Separation Technique) |
||
| (A) | Aniline from aniline-water mixture | (I) | Simple distillation |
| (B) | Glycerol from spent-lye in the soap industry | (II) | Fractional distillation |
| (C) | Different fractions of crude oil in the petroleum industry | (III) | Distillation at reduced pressure |
| (D) | Chloroform- Aniline mixture | (IV) | Steam distillation |
Choose the correct answer from the options given below :
Concepts Covered - 1
Test for Hydrogen and Carbon
Carbon and hydrogen are detected by heating the compound with copper(II) oxide. Carbon present in the compound is oxidised to carbon dioxide (tested with lime-water, which develops turbidity) and hydrogen to water (tested with anhydrous copper sulphate, which turns blue).
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