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Q 79 What are the primary and secondary valencies of copper in Tetraammine.copper (II) sulpjate ?
Ops: A
O 2,1
В.
2,4
D. 02, 2
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The primary and secondary valencies of copper in Tetraamminecopper II sulphate is 2 and 4 respectively. Thus, the oxidation state of copper will be 2 and hence primary valency = 2. ... Thus, the coordination number or secondary valency is 4.
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