Question

how do you obtain copper of brown colour? Identify the reaction.

Answer 1

Explanation:

Substance X is copper , Y is copper oxide

Reaction: 2Cu+O2------2CuO

CuO + H2-------Cu + H2O

Substance oxidised: H2

Substance reduced: CuO

Answer 2

Explanation:

it's a redox reaction

when u react Cooper oxide with hydrogen gas it will give you copper and water

this copper have brown color