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According to Werner' s coordination theo...

According to Werner' s coordination theory, there are two kinds of valence primary or ______ and secondary or _____The former type of valency is ______while the latter type is______ .

A

three , negative , positive , cations

B

different , negative , positive , anions

C

two , primary , secondary , anions

D

two , saturated , unsaturated , cations

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The correct Answer is:
C
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