In Lassaigne's test when both N and S are present, blood red colour is due to the formation of

In Lassaigne's test when both N and S are present, blood red colour obtained is due to the formation of:

In Lassaignes test when both N and S are present blood red colour is obtained. This is due to the formation of (1)Ferric ferrocyanide (2)Ferric cyanide (3)Ferric thiocyanate (4)Ferric hydroxide.

In Lassagine's test, when both N and S are present, blood red colour is obtained. This is due to the formation of :

In the Lassaigne’s test, the blood red colouration is due to the formation of

Fill up the balnk. In Lassaigne's test for N, Prussian blue colour is formed due to the formation of ……

In the Lassaigne's test for the detection of sulphur, the purple colour is due to the formation of