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{:(Column-I(Ore),Column-II("Created form...

`{:(Column-I(Ore),Column-II("Created formula & properties")),((A)"Iron pyrites",(p) FeS_(2)),((B)"Fool's gold",(q)"Sulphide ore"),((C)"Galene",(r)Fe_(2)O_(3)),((D)"Haematite",(s)"Concentrated by froth"):}`

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The correct Answer is:
`(A) rarr p,q,s; (B) rarr p,q,s; (C) rarr q,s ; (D) rarr r`
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