1.

Which is (are) not an ore ?A. BauxiteB. MalachiteC. Zince blendeD. Pig iron

Answer» Correct Answer - D
Pig iron `rarr` It is the most inpure from of iron and cntains highest proportion of carbon `(2.5-4%)`
Malachite `rarrCu(OH_(2).CuCO_(3)`
Zince blende `rarrZns`
Bauxite `rarr A1_(2)O_(3).2H_(2)O`


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