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Both C o 3 + and P t 4 + have a coordination number of six. Which of the following pair of complexes will show approximately the same electrical conductance for their 0.001 M aqueous solutions? (assume 100% ionisation)

Options

  1. AC o C l 3 . 4 N H 3 a n d P t C l 4 . 4 N H 3
  2. BC o C l 3 . 3 N H 3 a n d P t C l 4 . 5 N H 3
  3. CC o C l 3 . 6 N H 3 a n d P t C l 4 . 5 N H 3
  4. DC o C l 3 . 6 N H 3 a n d P t C l 4 . 3 N H 3

Correct answer

C. C o C l 3 . 6 N H 3 a n d P t C l 4 . 5 N H 3

Step-by-step solution

C o C l 3 . 6 N H 3 → C o N H 3 6 C l 3 Number of ion = 4 P t C l 4 . 5 N H 3 → P t N H 3 5 C l C l 3 Number of ion = 4

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