Question:medium

Which from following complexes does NOT obey EAN rule?

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EAN rule is obeyed if the result equals the atomic number of the next noble gas ($36, 54,$ or $86$).
Updated On: May 12, 2026
  • $[Co(NH_3)_6]^{3+}$
  • $Cr(CO)_6$
  • $[Zn(NH_3)_4]^{2+}$
  • $[Cu(NH_3)_4]^{2+}$
Show Solution

The Correct Option is D

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