A metal M does not liberate hydrogen from acids but reacts with oxygen

1.	A metal M does not liberate hydrogen from acids but reacts with oxygen to give a black coloured product. Identify M and black coloured product and also explain the reaction of M with oxygen.
Answer» The metal M is copper (Cu) which reacts with oxygen when heated in the air to form black coloured copper(ll) oxide. The reaction can be written as: 2Cu + O₂ → 2CuO

A metal M does not liberate hydrogen from acids but reacts with oxygen to give a black coloured product. Identify M and black coloured product and also explain the reaction of M with oxygen.

Answer»

The metal M is copper (Cu) which reacts with oxygen when heated in the air to form black coloured copper(ll) oxide.

The reaction can be written as:

2Cu + O₂ → 2CuO

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A metal M does not liberate hydrogen from acids but reacts with oxygen to give a black coloured product. Identify M and black coloured product and also explain the reaction of M with oxygen.

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