Question

Brown coloured copper powder on heating turns into black coloured solution

Answer 1

Explanation:

When brown coloured copper powder is heated in air it reacts with atmospheric Oxygen and turns into black colour due to the formation of Copper Oxide which is actually black in colour. The black coloured copper oxide is actually Cupric Oxide (CuO) with an oxidation state of 2+ for copper metal.When brownHowever, if the hydrogen is passed through then it will turn brown. Since, if heating this brown copper in air turns black in color this is because of formation of copper oxide. This can be explained as copper reacts with oxygen present in air to form copper oxide, which is actually blac coloured copper powder is heated in air it reacts with atmospheric Oxygen and turns into black colour due to the formation of Copper Oxide which is actually black in colour. The black coloured copper oxide is actually Cupric Oxide (CuO) with an oxidation state of 2+ for copper metal.

Answer 2

Answer:

Explanation:

When brown coloured copper powder is heated in air it reacts with atmospheric Oxygen and turns into black colour due to the formation of Copper Oxide which is actually black in colour. The black coloured copper oxide is actually Cupric Oxide (CuO) with an oxidation state of 2+ for copper metal.