Question

an shiny brown element x is heated inair becomes black​

Answer 1

Answer:

Copper is the brown coloured element X which on heating in air becomes black coloured compound copper oxide.

Answer 2

Answer:

A shiny brown coloured element 'X' on heating in air becomes black in colour. Name the element 'X' and the black coloured compound formed. The shinny brown colored element 'X' is copper. When it is heated in air, it becomes black due to the deposit of copper oxide.

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