Question

Equivalent weight of copper in CuO and Cu2O is respectively

Answer 1

Copper - Symbol - Cu. 
It is a transition metal with variable valency. 
Atomic number - 29
ELECTRONIC CONFIGURATION:
1S2 2S2 2P6 3S2 3P6 4S1 3d10
As d orbital electrons are tightly bound, so copper has variable valency. 
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IN CASE OF CUO: Cupric Oxide or Copper (II) oxide. 
Copper valency is 2. 
IN CASE OF Cu2O : cuprous Oxide or copper (I) Oxide
Copper valency is 1.