JEE Mains · Chemistry · STD 11 - 8.3. Organic chemistry purification and characterization
Appearance of blood red colour, on treatment of the sodium fusion extract of an organic compound with \(\mathrm{FeSO}_4\) in presence of concentrated \(\mathrm{H}_2 \mathrm{SO}_4\) indicates the presence of which element/s?
- A \(\mathrm{Br}\)
- B \(\mathrm{N}\)
- C \(\mathrm{N}\) and \(\mathrm{S}\)
- D \(\mathrm{S}\)
Answer & Solution
Correct Answer
(C) \(\mathrm{N}\) and \(\mathrm{S}\)
Step-by-step Solution
Detailed explanation
\(\mathrm{Fe}^{2+} \xrightarrow[\text { Conc. } \mathrm{H}_2 \mathrm{SO}_4]{\mathrm{H}^{+}} \mathrm{Fe}^{+3}\) \(\mathrm{Fe}^{+3} \xrightarrow{-\mathrm{SCN}} \mathrm{Fe}(\mathrm{SCN})_3(\) blood red colour \()\) Appearance of blood red colour indicates presence of both nitrogen…
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