Transition element makes complex compound due to
Transition element makes complex compound due to
- A
presence of $d-$ orbital
- B
large size
- C
variable valency
- D
presence of $2e^-$
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- [AIPMT 2002]
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Passing $H_2S$ gas into a mixture of $Mn^{+2}, Ni^{+2}, Cu^{+2}$ and $Hg^{2+}$ ions in an acidified aqueous solution precipitates
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