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Magnesium does not decompose in
Options
(a) steam
(b) hot water
(c) cold water
(d) semi-hot water
Correct Answer:
cold water
Explanation:
Magnesium has a very slight reaction with cold water. The reaction soon stops because the magnesium hydroxide formed is almost insoluble in water and forms a barrier on the magnesium preventing further reaction. Mg + 2H₂O → Mg(OH)₂ + H₂.
Related Questions: - The elements with atomic number 9,17,35,53,85 are called
- Helium atom is two times heavier than a hydrogen molecule, the average kinetic energy
- For the reaction C(s) + O₂(g)
- Which of the following compounds can exist in optically active form
- Alkali metals in each period have
Topics: S and Some P Block Elements
(157)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The elements with atomic number 9,17,35,53,85 are called
- Helium atom is two times heavier than a hydrogen molecule, the average kinetic energy
- For the reaction C(s) + O₂(g)
- Which of the following compounds can exist in optically active form
- Alkali metals in each period have
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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