MCQ
The ability to form complex compounds by the transitional metal ion is due to
- ASmall size
- BVacant $'d'$ orbitals
- CHigh nuclear charge
- ✓All of these
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$(i)$ Neither with Fehling's solution nor with Tollen's reagent
$(ii)$ Only with Tollen's reagent but not with Fehling's solution
$(iii)$ With both Tollen's reagent and Fehling's solution. If they contained either ethanal (acetaldehyde) or propanone (acetone) or benzal (benzaldehyde), which bottle contained which