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When is the oxidation state of hydrogen equal to -1

When is the oxidation state of hydrogen equal to -1
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Answer #1

When hydrogen is present as hydride in metal hydrides, the oxidation state of hydrogen equal to -1.

Example includes sodium hydride . Na is highly electropositive alkali metal. Its oxidation state is +1. the The oxidation state of hydrogen in will be equal to -1.

Another example is magnesium hydride . Mg is highly electropositive alkaline earth metal. Its oxidation state is +2. the The oxidation state of hydrogen in will be equal to -1.

Other examples include and .

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