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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 number of π-bond present in propyne is
- If the hydrogen ion concentration of an acid decreases 10 times, its pH value
- Metallic sodium can be stored in
- NaOCl is used as a bleaching agent and sterilising agent. It can be synthesized
- Benzaldehyde condenses with N,N-dimethylaniline in presence of anhydrous ZnCl₂
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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