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. Increasing order of rms velocities of H₂,O₂,N₂ and HBr is
  2. When phenol reacts with phthalic anhydride in presence of H₂SO₄ and heated
  3. The two polypeptide chains present in insulin contain which of the following number
  4. The cell membranes are mainly composed of
  5. ArH + N₂ + H₃PO₃ + HX are the products of the following reaction