Navigate

Which one of the alkali metals, forms only, the normal oxide, M₂O on heating

Which one of the alkali metals, forms only, the normal oxide, M₂O on heating in air

Options

(a) Rb
(b) K
(c) Li
(d) Na

Correct Answer:

Li

Explanation:

When alkali metals heated in atmosphere of oxygen, the alkali metals ignite and form oxides.On combustion, Li forms Li₂O; sodium gives the peroxide Na₂O₂ and potassium and rubidium gives superoxide(MO₂).

AIPMT2012
admin:

Related Questions

  1. Which one of the following is correctly matched
  2. A primary alcohol,C₃H₈O (A) on heating with sulphuric acid undergo dehydration
  3. Chlorobenzene can be prepared by reacting aniline with
  4. For two ionic solids CaO and KI,identify the wrong statements among the following
  5. Which of the following compounds gives trichloromethane on distilling with