1.

A singledisplacementreaction is representedbyX_((s)) +2HCl _((aq)) to XCl_(2((aq)) +h_(2(aq)).whichof thefollowing(s)couldbex?(i) Zn(ii) Ag (iii )Cu(iv )Mg. Choosethe bestpair .

Answer»

I andii
II and iii
iii ANDIV
I andiv

Answer :D


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