Which of the given complex species is following EAN rule?

Question

Which of the given complex species is following EAN rule?, [ C a ( E D T A ) ] 2 -, [ C r ( e n ) 3 ] 3 +, [ C o B r C l ( t r i e n ) ] +, [ N i ( d m g ) 2 ]

MARKS App · Accepted Answer

EAN = Z – Oxidation number + 2 × number of ligands [ C a ( E D T A ) ] 2 - 20 - 2 + ( 6 × 2 ) = 30 [ C r ( e n ) 3 ] 3 + 24 - 3 + ( 2 × 2 × 3 ) = 33 [ C o B r C l ( t r i e n ) ] + 27 - 3 + 2 + 2 + ( 4 × 2 ) = 36 [ N i ( d m g ) 2 ] 28 - 2 + ( 4 × 2 ) = 34

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