Question

Which one of the following is an outer orbital complex and exhibits paramagnetic behaviour ?
(a) [Ni(NH₃)₆]²⁺
(b) [Zn(NH₃)₆)]²⁺
(c) [Cr(NH₃)₆]³⁺
(d) [Co(NH₃)₆]³⁺

Answer 1

A metal-containing ring like that shown is called a chelate ... more stable than the corresponding complexes of ... this increase in stability is called the chelate effect

Answer 2

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Ans

Option.a

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