JEE Main · 2026 · 23 Jan 2026 · Shift 2 · Practical and Analytical Chemistry

WhatsApp Email

In Carius method 0.2425 g of an organic compound gave 0.5253 g silver chloride. The percentage of chlorine in the organic compound is

(A) $53.58%$ ✓ Correct
(B) $87.65%$
(C) $37.57%$
(D) $34.79%$

Answer: (A)

Solution

All chlorine in the sample is precipitated as AgCl, so the mass of chlorine is

\frac{35.5}{143.5} \times 0.5253 = 0.1300 g

. As a fraction of the sample this is

% Cl = \frac{35.5}{143.5} \times \frac{0.5253}{0.2425} \times 100 = 53.58%

JEE Main · 2026 · 23 Jan 2026 · Shift 2 · Single correct option

Practise more: all JEE Main PYQs on Practical and Analytical Chemistry →

More JEE Main questions on Practical and Analytical Chemistry

Consider the following reactions.
$PbCl_{2} + K_{2} CrO_{4} \to A + 2 KCl$ (Hot solution)
$A + NaOH ⇌ B + Na_{2} CrO_{4}$ …
JEE Main 2026View solution →
In Carius method, 0.75 g of an organic compound gave 1.2 g of barium sulphate, find percentage of sulphur (molar mass $32 g mol^{- 1}$ ). Molar mass of barium sulphate is $233 g mol^{- 1}$ .
JEE Main 2026View solution →
Sodium fusion extract of an organic compound (Y) with $CHCl_{3}$ and chlorine water gives violet color to the $CHCl_{3}$ layer. 0.15 g of $(Y)$ gave 0.12 g of the silver halide precipitate in Carius method. Percentage of halogen in the compound …
JEE Main 2026View solution →
When 1 g of compound ( X ) is subjected to Kjeldahl's method for estimation of nitrogen, 15 $mL, 1 M H_{2} SO_{4}$ was neutralized by ammonia evolved. The percentage of nitrogen in compound $(X)$ is :
JEE Main 2026View solution →
Identify the correct statements:
A. Hydrated salts can be used as primary standard.
B. Primary standard should not undergo any reaction with air.
C. Reactions of primary standard with another substance should be instantaneous and stoichiometric.
D. Primary standard should not be …
JEE Main 2026View solution →
Match List-I with List-II.

List-I: Functional group (detection)
(A) Unsaturation (Baeyer's test)
(B) Alcoholic group (Ceric ammonium nitrate test)
(C) Aldehyde group (Tollen's reagent)
(D) Phenolic group ( $FeCl X_{3}$ test)

List-II: Change observed during detection
(I) Red co …
JEE Main 2026View solution →