write the chemical compound which turns brownish copper to black
Answers
Answer:copper oxide CuO
Explanation: when copper is burnt in the presence of oxygen copper reacts with oxygen to form copper oxide which is black in colour and this black coloured compound covers the copper and makes it black .
Question:
Write the chemical compound which turns brownish copper to black?
Answer:
Copper(II) oxide or cupric oxide is the chemical compound which turns brownish copper to black.
Explanation:
2Cu + O₂ + Heat => 2CuO
When copper(brownish in colour) gets heated in presence of oxygen then the compound CuO(black in colour) is formed.
Copper(II) oxide or cupric oxide(CuO) =>
1. Inorganic compound
2. Belongs to monoclinic crystal system
3. Have a square planar configuration.
4. Produced on a large scale by pyrometallurgy.
5. Used in welding, wood preservatives etc.