1.

Which of the following will give blood red colour with FeCl_(3) in sodium extract ?

Answer»


`H_(2)N-OVERSET(S)overset(||)C-NH_(2)`
`CH_(3)-overset(O)overset(||)C-NH_(2)`
`H_(2)N-overset(O)overset(||)C-NH_(2)`

SOLUTION :If Both nitrogen and sulpher are present in an organic compound, sodium FUSION will convert into sodium THIOCYANATE which than react with `Fe^(+3)` to farm blood red COLOUR complete `[Fe(SCN)]^(+2)`


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