MCQ
The ionisation energies of transition elements are
- Aless than $p-$ block elements
- Bmore than $s-$ block elements
- Cless than $s-$ block elements
- ✓Both $(a)$ and $(b)$
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$CH_3 -CH = CH -CH( OH)-Me$ is :
$A: \left[ Ni ( en )_{3}\right]^{2+}, B :\left[ Ni \left( NH _{3}\right)_{6}\right]^{2+}, C :\left[ Ni \left( H _{2} O \right)_{6}\right]^{2+}$