Acidified sodium fusion extract on addition o | vedclass

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(B) When both nitrogen $(N)$ and sulfur $(S)$ are present in an organic compound,sodium fusion produces sodium thiocyanate $(NaCNS)$.Upon adding acidi

Vedclass · Accepted Answer

$N$ and $S$

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(B) When both nitrogen $(N)$ and sulfur $(S)$ are present in an organic compound,sodium fusion produces sodium thiocyanate $(NaCNS)$.Upon adding acidified ferric chloride $(FeCl_3)$ solution to the extract,the ferric ions react with thiocyanate ions to form ferric thiocyanide,which exhibits a blood-red colouration.The chemical reaction is: $3 \ NaCNS + FeCl_3 \longrightarrow Fe(CNS)_3 + 3 \ NaCl$ (blood-red colour).

Acidified sodium fusion extract on addition of ferric chloride solution gives blood red colouration,which confirms the presence of:

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