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Properties and Uses of Calcium Oxide

The formulae ...

Question

The formulae of oxides formed when barium burns in presence of oxygen are:

B a_{2} O, B a O

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B a O, B a O_{2}

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B a O, B a_{2} O_{2}

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B a_{2} O, B a O_{2}

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Solution

The correct option is B $B a O, B a O_{2}$
$2 B a + O_{2} \to 2 B a O$ (Barium oxide)

$B a + O_{2} \to B a O_{2}$ (Barium peroxide)

Option B is correct.

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