JEE Advanced 2013 Chemistry question

is ethylenediaminetetraacetate ion. The total number of N–Co–O bond angles in complex ion is

Answer: 8

Solution

EDTA is hexadentate: it binds Co through 2 N atoms and 4 O atoms in an octahedral arrangement, with the two N atoms necessarily cis to each other. Each N atom has 4 cis positions and 1 trans position. For each N, one cis

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Question ID VK-026161