Which one of the alkali metals forms only the normal oxide, `M_(2)O`, on heating in air ?
A. K
B. Li
C. Na
D. Rb.
A. K
B. Li
C. Na
D. Rb.
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Correct Answer – C
Lithium (Li) is the alkali metal which forms only normal oxide. `Li_(2)O` when heated in air.
`2Li + 1//2O_(2) rarrLi_(2)O`