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NEET2012Chemistrys Block ElementsActual

Which one of the alkali metals, forms only, the normal oxide, M ₂ O on heating in air?

Options

  1. ARb
  2. BK
  3. CLi
  4. DNa

Correct answer

C. Li

Step-by-step solution

Li is the alkali metal which forms only normal oxide Li ₂ O when heated in air. 2 Li + 1 2 O ₂ Li ₂ O Sodium, when heated in air, forms peroxide while heavier alkali metals form superoxide as the major product.

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