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Question

P b C r O 4 → N a O H C o m p l e x Complex is

Options :

  1. Dianionic with CN = 6

  2. Dianionic with CN = 4

  3. Neutral with CN = 4

  4. Trianionic with CN = 6

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Answer :

Dianionic with CN = 4

Solution :

Yellow ppt. of PbCrO4 ↓ is soluble in hot NaOH, forming [Pb(OH)4]2- as Pb2+ is amphoteric in nature.

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