AIPMT PRELIMS2012Chemistry-s-Block Elements
AIPMT PRELIMS 2012 Chemistry Alkali Metals MCQ Question
Type: MCQ-conceptual-Medium
Which one of the alkali metals, forms only, the normal oxide, M₂O on heating in air?
A
Na
B
Rb
C
K
D
Li
Correct Answer
Option D
Detailed Explanation
Lithium forms only the normal oxide (Li₂O) when heated in air, unlike other alkali metals which form peroxides or superoxides.
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