Which of the following order is correct
$Cr^{+2} > Fe^{+2}$ : Reducing character
$Mn^{+3} > Cr^{+3}$ : Oxidising character
$WO_3 > CrO_3$ : Stability order
All of these
Which of the following will give green hydrated ion
Number of unpaired electrons in $M{n^{2 + }}$ is
Why does copper not replace hydrogen from acids?
The catalytic activity of the transition metal and their compound is due to their
Which is a stronger reducing agent $Cr ^{2+}$ or $Fe ^{2+}$ and why?