Question

‘X’ is a metal which do not react with water or strong acid. But with chlorine it forms XCl. What it would be ? From this what can you conclude?

Answer 1

Answer:

X is hydrogen

Explanation:

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Answer 2

The metal 'X' would be Copper (Cu).

- Copper does not react with water or any strong acid like HCl or H2SO4.

- But it reacts with chlorine to form copper (I) chloride (CuCl).

- From this observation, we can conclude that copper is unreactive as compared to the other metals.

- That is the reason for its very low position in the reactivity series of metals.

- Hence, the metal X is Copper.