First slide

Werner's theory

Question

According to werner theory primary, secondary and duel valency of central atom in $[Pt (en) (H_{2} O) {Cl}_{3}] Cl$ Complex respectively

Moderate

A

3,4 and 5
B

0,6 and 3
C

6,3 and 0
D

4,6 and 3

Solution

4Cl^- satisfies primary valency,3Cl^- ,1H₂O and en (bidentate)satisfies secondary valency and the ligand satisfy primary and secondary valency is called duel valency, that means ligand involved in calculation of primary and secondary valency. Hence Cl^- ligand acts as primary and secondary valency in given complex $[Pt (en) (H_{2} O) {Cl}_{3}] Cl$ , so duel valency of $[Pt (en) (H_{2} O) {Cl}_{3}] Cl$ Complex is 3

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