1.

Sulphide ores are common for the metals

Answer»

`Ag ,Cu and Pb`
`Ag ,Cu and Sn`
`Ag ,MG and Pb`
`AI,Cu and Pb`

SOLUTION :SULFIDE ORE of Agis Argents andof Pbisgalents (PbS) and of Cu iscopperglance `(Cu_(2)S)` Hence (a) is CORRECT


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