Find total number of metal cations which are pfted as metal sulphide on passing H2S gas through metal salt solution. Pb2+(aq.), Mn2+(aq.), Sn2+(aq.), Cr3+(aq.), Mg2+(aq.), Hg2+(aq.), Cu2+(aq.), Ag+(aq

Question

Find total number of metal cations which are pfted as metal sulphide on passing H2S gas through metal salt solution. Pb2+(aq.), Mn2+(aq.), Sn2+(aq.), Cr3+(aq.), Mg2+(aq.), Hg2+(aq.), Cu2+(aq.), Ag+(aq.), Al3+(aq.), Ni2+(aq.)

Prashant Kotian · Accepted Answer

Correct answer: **5** / H2S/H+ GIVES PPT. WITH 1ST AND 2ND GROUP RADICALS (PB2+, SN2+, HG2+, CU2+, AG+). AL3+, MG2+, CR3+ DO NOT FORM STABLE SULPHIDES IN AQUEOUS MEDIUM.

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