Choose the correct statement regarding transition elements?
Transition elements has low melting points
Transition elements do not have catalytic activity
Transition elements exhibit variable oxidation states
Transition elements exhibit inert pair effect
Why transition elements form a coloured compounds?
The "spin-only" magnetic moment [ in units of Bohrmagneton, $(\mu _B )$ ] of $Ni^{2+}$ in aqueous solution would be (At. No. $Ni= 28)$
The number of unpaired electrons in $Z{n^{2 + }}$ is
Which of the following have maximum number of unpaired electrons
Paramagnetism is exhibited by molecules