What was the term proposed by Werner for the number of groups bound directly to the metal ion in a coordination complex?(a) Primary valence(b) Secondary valence(c) Oxidation number(d) PolyhedraI have been asked this question during an interview.This intriguing question originated from Werner’s Theory of Coordination Compounds topic in section Coordination Compounds of Chemistry – Class 12

What was the term proposed by Werner for the number of groups bound di

1.	What was the term proposed by Werner for the number of groups bound directly to the metal ion in a coordination complex?(a) Primary valence(b) Secondary valence(c) Oxidation number(d) PolyhedraI have been asked this question during an interview.This intriguing question originated from Werner’s Theory of Coordination Compounds topic in section Coordination Compounds of Chemistry – Class 12
Answer» RIGHT choice is (b) Secondary VALENCE Easy explanation: Primary valence of a metal ion is also known as its oxidation number. The secondary valence is equal to coordination number and it is fixed for a metal. Coordination polyhedra is the TERM for the spatial arrangements of the groups/ions around the metal.

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