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Question: Answered & Verified by Expert
Assertion : EDTA forms complex with divalent metals of $3 d$-series in the ratio of $1: 1$
Reason : EDTA has $4-\mathrm{COOH}$ groups.
ChemistryCoordination CompoundsAIIMSAIIMS 2013
Options:
  • A If both assertion and reason are true and reason is the correct explanation of assertion.
  • B If both assertion and reason are true but reason is not the correct explanation of assertion.
  • C If assertion is true but reason is false.
  • D If both assertion and reason are false.
Solution:
1273 Upvotes Verified Answer
The correct answer is: If both assertion and reason are true but reason is not the correct explanation of assertion.
EDTA is a hexadentate ligand. It forms complex with central metal in the ratio $1: 1$ in which it binds through two nitrogen atoms and four oxygen atoms.

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