Question

what happens when ammonia reacts with mercureous nitratate paper?

Answer 1

When ammonia is passed throughFeSO4 solution, Fe3+ gets precipitated giving dirty green colour. Due to theformation of ammonobasic mercuric nitrate and finely divided mercury,ammonia turns Mercurous nitrate paper black when passed through it.

Answer 2

Reaction of ammonia with mercurous nitrate paper:

• When ammonia reacts with mercurous nitrate paper, it produce ammonium nitrate, mercury and insoluble HgNH2NO3.

Hg2(NO3)2(aq) + 2NH3(aq) --> Hg(l) + HgNH2NO3(aq) + NH4NO3(aq)

• The is related to a common reaction in the qualitative analysis pattern for "group-1", silver, lead and mercury(I), where insoluble HgNH2Cl is produced. We also see the disproportionation of Hg2^2+.

Hope it helped........