asked 142k views
3 votes
A shiny brown coloured element X on heating  in air  becomes black in 

colour

a) Name the element X  and the black coloured compound formed

b) What happens  when hydrogen is passed through that compound?

c) Write the balanced chemical equations for all the reactions involved.​

1 Answer

2 votes

Copper, and the black is CuO

answered
User Iloo
by
7.7k points
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