reddish-brown metal x – Discussion Forum

Forgot Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

You must login to ask question.

Search

Ask A Question

Virat

Asked: October 7, 2025In: Class 10 Science

A reddish-brown metal “X”, when heated in air, gives a black compound “Y”, which when heated in presence of H₂ gas gives “X” back. “X” is refined by the process of electrolysis; this refined form of “X” is used in electrical wiring. Identify “X” and “Y”. Draw a well-labeled diagram to represent the process of refining “X”.

The reddish-brown metal X is copper (Cu). When heated in air, it forms black copper(II) oxide (CuO) or Y. On heating with hydrogen, CuO reduces back to Cu, used in electrical wiring. class 10 science Question Paper answer key cbse class 10 ...