Question

A metal with variable valency +2 & +4.

[ platinum, zine, potassium, copper, magnesium ]


please answer this :))​

Answer 1

Answer:

platinum

Explanation:

platinum is the answer as zinc is not a transitional element that it could have variable oxidation state

potassium is alkaline metal and only shows+1 oxidation state

copper shows +1 and +2 oxidation state

magnisium is alkaline earth metal so it shows only+2 oxidation state

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