1.

FeSO_4 is used in brown ring test for nitrates and nitrites. In this test a freshly preparedFeSO_4 solution is mixed with eolution containingNO_(2)^(-) or NO_(3)^(-) and the conc. H_2SO_4 is run down the side of the tube. If the mixture gets hot is shaken I) The brown colour disappear II) No is evolved III) A yellow solution of Fe_(2)(SO_4)_3 is formed

Answer»

I,II,III correct
I,III correct
II,III correct
Only I correct

Solution :On heating brown RING decomposes and `Fe^(+2)` oxidizes to `Fe^(+3)`


Discussion

No Comment Found

Related InterviewSolutions