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Reactivity Series

Which oxide c...

Question

Which oxide can be reduced to the metal using carbon?

A

Zinc oxide

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B

Magnesium oxide

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C

Sodium oxide

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D

Calcium oxide

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Solution

The correct option is A
Zinc oxide

This is because carbon is higher in reactivity series than zinc while it is lower than sodium, magnesium and calcium in the reactivity series. Any element will have higher affinity for an element which is higher in reactivity series than that for a lower one. (refer to the fig.1)

Figure 1

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