Question

when a black metal compound xo

Answer 1

What is the complete question?

Answer 2

Answer:

Explanation:i) Metal X is Copper, as Copper oxide when reacts with Hydrogen gives Copper and Water.

ii) Gas Y2 is Hydrogen , since it reacts with Copper oxide to give Copper and Water.

iii) Compound XO is Copper oxide (CuO) since it reacts with Hydrogen and gives Copper and Water.

iv) Compound Y2O is Water (H2O), as Copper oxide when reacts with Hydrogen gives Water and Copper.

v) The chemical reaction which takes place on heating XO with Y2 is - CuO+H2 -> Cu+H2O.

vi) This kind of reaction is called displacement reaction as copper is being displaced by hydrogen from its oxide to form water.