Question

An element A is tetravalent and element B is divalent. The formula of the compound formed by these two elements is__________????

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Answer 1

Explanation:

An element A is tetravalent hence oxidation number of A can be A+4

Element B is divalent hence oxidation number of B can be B2−

According to the cris-cross method formula of the compound will be : A2B4 or AB2

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