In a reaction the ferrous $(F{e^{ + 2 }})$ iron is oxidised to ferric $(F{e^{ + 3 }})$ ion. The equivalent weight of the ion in the above reaction is equal to
Half of the atomic weight
$1/5$ of the atomic weight
The atomic weight
Twice the atomic weight
Magnetic moment is expressed in
Magnetic moment $2.83\, BM$ is given by which of the following ions ?
(At. nos. $Ti = 22,\,Cr = 24,$ $ Mn = 25,\,Ni = 28$)
Incorrect match is
ppt $\rightarrow$ colour
An ornamental of gold having $75\%$ of gold, it is of .............. carat.
The atomic number of vanadium $(V)$, chromium $(Cr)$, manganese $ (Mn)$ and iron $(Fe) $ are respectively $ 23,\, 24, \,25 $ and $ 26 $ which one of these may be expected to have the highest second ionization enthalpy