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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).
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Topics: S and Some P Block Elements
(157)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The increasing order of the density of alkali metals
- ‘The addition of unsymmetrical reagents to unsymmetrical alkenes occurs in such
- The molar fraction of nitrogen, in a mixture containing 70 grams nitrogen,
- For the reaction 2SO₃(g) → 2SO₂(g) + O₂(g) the entropy change (ΔG) is
- When CO₂ is passed through solution of calcium hydroxide,Which one of the
Topics: S and Some P Block Elements (157)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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