Question

A reddish brown coloured metal used in cloctric wires, when powdered and heated strongly In an open China dish, is colour turns black, When hydrogen ges is passed over this black substances, it regain its original colour. Based on this information, the metal and black coloured substances are

A. copper and copper nitrate
B. silver and silver oxide
C. copper and copper oxide
D. aluminium and aluminium oxide​

Answer 1

Answer:

Copper and Copper Oxide

Explanation:

Hope it helps Army

Answer 2

Answer:

C. Copper and copper oxide

Explanation:

When copper metal is heated in air it becames black colour compound. That black colour compound is called Copper and copper oxide