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Which is a pair of allotropes? molecular oxygen and ozone diamond and carbon dioxide carbon-14 and carbon-12 iron(III) oxide and iron(II) oxide

Which is a pair of allotropes? molecular oxygen and ozone diamond and carbon dioxide carbon-14 and carbon-12 iron(III) oxide and iron(II) oxide
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Which is a pair of allotropes?

molecular oxygen and ozone

diamond and carbon dioxide

carbon-14 and carbon-12

iron(III) oxide and iron(II) oxide

User Aravinthan K
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1 Answer

2 votes
1st one I think.........................
User Maba
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