1.

An organic compound is fused with sodium metal and crushed in water. The solution thus obtained when treated with freshly prepared ferric chloride solution gives blood red color solution. The test confirms

Answer»

Presence of `S` in the organic COMPOUND.
Presence of `O` in the organic compound
Presence of `N` and `O` in the organic compound
Presence of `N` and `S` in the organic compound

Solution :If organic compound has both `N` and `S`, then the LASSAIGNE's extract has `SCN^(-)` ION which form blood red color solution with `FE^(3+)` ion.
`Fe^(3+) + SCN^(-) rarr [Fe(SCN)]^(2+)`


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