Question

A brown substance 'X' on heating in air forms a subatance 'Y'. When hydrogen gas is placed over heated 'Y' it again changes back into 'X'.
Name the substance 'X' and 'Y'.
Name the type of chemical reactions occurring during both the changes.
Write the chemical reactions.​

Answer 1

Answer:

substance X is copper

and substance y is oxygen

it's reactions take place and forms copper oxide

Answer 2

Explanation:

Answer: i) Substance X is Copper and substance Y is Copper oxide. Oxidation and reduction.

Hope it helps you

Mark me brainlist