A) 4 X pm
B) X/4 pm
C) X/2 pm
D) 2 X pm
Correct Answer: D
Solution :
Primary valency of metal is satisfied only by the anion. It is simply ionic valency. While secondary valency is satisfied by ligands (which can give a lone-pair of \[{{e}^{-}}\]). The ligands satisfying secondary valency, are always written in co-ordination sphere. This concept was given by Werner.You need to login to perform this action.
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