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Question: Which of the following is a tridentate ligand?...

Which of the following is a tridentate ligand?

A

EDTA4−EDTA^{4 -}

B

(COO)22−(COO)_{2}^{2 -}

C

Dien

D

NO2−NO_{2}^{-}

Answer

Dien

Explanation

Solution

Dien (Diethylenetriamine) has the following structure

H2N−CH2−CH2−N¨H−CH2−CH2−N¨H2H_{2}N - CH_{2} - CH_{2} - \ddot{N}H - CH_{2} - CH_{2} - \ddot{N}H_{2}