FeCl2 + 3NH4OH → Fe(OH)3 + 3NH4Cl
Pb2O3 + 4HCl → PbCl2 + 2H2O
PbNO3 + H2S → PbS + 2HNO3
NaOH + H2SO4 → NaHSO4 +H2O
2NH4NO3 → N2 + 2H2O
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Discussions (13)

Pb(NO3)2 + H2S → PbS + 2HNO3
mostly metals like Ag and Pb in trioxonitrate(V) salts react with hydrogen sulohude to produce a black deposit if lead(II) or silver(I) sulphides ... but check the way my leadnitrate is written and that in the question , so option C is wrong due to error in the chemical formual of lead nitrate ... so D is correct
H2SO4 is dibasic and can react with alkali to form to types of salt , : neutral salt (if base is excess) or acid salt (if base is not in excess)

When 2NH4NO undergoes decomposition in the presence of heat, it forms two moles of N2O (laughing gas) and four moles of H2O (water) certainly 'E' is NOT the correct answer to that question. Thanks

as written, I think 'd' should be the correct answer because it is the only balanced equation there
d option "E" is not balanced, cos d reactant show 3 oxygen but 2 in d product. D equation in "D" is well balanced



