Question

Sita bought a copper lamp as a decorative piece and displayed it in her showcase. Initially, it
was of 0 colour. After a month she found that it looked dull with (ii). (colour)
patches on it. She was so shocked to see this. The chemical name of this new changed material
is (iii)
and it was formed on reaction of copper with moisture and(iv)
She also studied the alloys of element Copper and found that alloy (v). is made up of
copper and zinc while another alloy (vi) is made
up copper and tin.
(3 Points)
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Answer 1

Answer:

(ii) green

(iii) copper oxide

(iv)oxygen

(v)brass

(vi)bronze