Please answer both the questions

Dear Student,
The solution is as follows:
(a) Black metallic oxide is copper oxide ( CuO).
 The reaction is as follows:
       CuO(s) + 2 HCl (aq) → CuCl2(aq) + H2(g)
CuCl​2 is green in colour.
For the remaining queries, we request you to ask different questions in different threads to get rapid assistance from our experts.

  • 1
What are you looking for?