When 1 g of compound $(\mathrm{X})$ is subjected to Kjeldahl's method for estimation of nitrogen, 15 mL 1 M $\mathrm{H}_2 \mathrm{SO}_4$ was neutralized by ammonia evolved. The percentage of nitrogen in compound $(\mathrm{X})$ is :
In Carius method, 0.75 g of an organic compound gave 1.2 g of barium sulphate, find percentage of sulphur (molar mass $32 \mathrm{~g} \mathrm{~mol}^{-1}$ ). Molar mass of barium sulphate is $233 \mathrm{~g} \mathrm{~mol}^{-1}$.
A mixture of 1 g each of chlorobenzene, aniline, and benzoic acid is dissolved in 50 mL ethyl acetate and placed in a separating funnel. 5 M NaOH (30 mL) was added in the same funnel. The funnel was shaken vigorously and then kept aside. The ethyl acetate layer in the funnel contains :
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 soap industry | (II) | Fractional distillation |
| (C) | Different fractions of crude oil in petroleum industry | (III) | Distillation at reduced pressure |
| (D) | Chloroform-Aniline mixture | (IV) | Steam distillation |
Choose the correct answer from the options given below :
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