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Question
From amongst the metals sodium, calcium, aluminium, copper and magnesium, name the metal:
- which reacts with water only on boiling, and
- another which does not react even with steam.
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Solution
- Magnesium reacts with water only when it is boiled (hot water) to form magnesium hydroxide and hydrogen gas.
- Copper does not react with water even in the form of steam, as it is less reactive than hydrogen.
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