Question

4)Thenaturallyoccurringcompoundsofmetalsalongwithotherimpuritiesareknownas__________.

5)Themineralsfromwhichmetalsareextractedprofitablyandconvenientlyarecalled___________.

6)Anorecontainssomeoftheimpuritieslikesoil,sand,etc.Theseimpuritiesarecalled_________.

7)Theprocessofextractionofametalfromitsoreiscalled_________.

8)Bauxiteisacommonoreof_________.

9)_________processisusedforthepurificationofbauxite.

10)Duringtheelectrolysisofalumina,_________isliberatedattheanode.

11)Thereactionofironoxidewithaluminiumisknownas_________reaction.

12)Theprocessofcoatingathinlayerofzinconironisknownas___________.​

Answer 1

Explanation:

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