$$ \text { Match List - I with List - II. } $$
| List - I Functional group (detection) |
List - II Change observed during detection |
||
|---|---|---|---|
| A. | Unsaturation (Baeyer's test) | I. | Red colour appears |
| B. | Alcoholic group (Ceric ammonium nitrate test) | II. | Silver mirror appears |
| C. | Aldehyde group (Tollen's reagent) | III. | Violet colour appears |
| D. | Phenolic group ( $\mathrm{FeCl}_3$ test) | IV. | Discharge of pink colour |
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 :
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