Question

9. A shiny brown coloured elements on heating in air becomes black in colour, Name the element X and black coloured compound
form. write equation.​

Answer 1

Answer:

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Answer 2

Answer:

Element X is Copper (Cu)

Explanation:

When we heat Copper in presence of air, A black coating of Copper Oxide is formed

2Cu + O2 --------------> 2CuO

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