Chemistry · Practical Organic Chemistry

JEE Main 2026 — 28 January, Evening Shift — Question 64

A student has been given 0.314 g of an organic compound and asked to estimate Sulphur. During the experiment, the student has obtained 0.4813 g of barium sulphate. The percentage of sulphur present in the compound is $\_\_\_\_$ 。 (Given Molar mass in $\mathrm{g} \mathrm{mol}^{-1} \mathrm{~S}: 32, \mathrm{BaSO}_{4}: 233$ )

Option A:
$42.10 \%$
Option B:
$63.15 \%$
Option C:
$21.05 \%$
Correct
Option D:
$48.24 \%$

Answer: C

Step-by-step solution

$\%S$ $=\frac{32}{233} \times \frac{0.4813}{0.314} \times 100$ $=21.052 \%$ Ans. (3) $21.05 \%$

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Exam: JEE Main 2026
Paper: 28 January, Evening Shift
Subject: Chemistry
Chapter: Practical Organic Chemistry
Topic: Quantitative organic analysis

Total number of alkali insoluble solid sulphonamides obtained by reaction of given amines with Hinsberg's reagent is Aniline…

Answer: C

Step-by-step solution

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