An alkali metal M reacts with to form metal oxide. The metal oxide formed is in nature.

hydrogen

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oxygen

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basic

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acidic

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amphoteric

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Solution

The correct option is C basic
Alkali metals on reaction with oxygen gas form metal oxides. These oxides when combine with water form bases. Hence, these oxides are considered as basic oxides.

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When metal reacts with oxygen metal oxide is formed.

H_{2} O

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