1.

MSO_(4)overset(NH_(4)OH)rarr underset("White")(Xdarr)underset("Excess")overset(NH_(4)OH)(rarr)Y overset (H_(2)S)(rarr)Zdarr Here, M and Z are

Answer»

Cu,ZNS
Zn,ZnS
Fe,FeS
`Al,Al_(2)S_(3)`

SOLUTION :
so , M and Z are Zn and ZnS, RESPECTIVELY.


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