Which of the following has highest ionic radii
$C{r^{ + 3}}$
$M{n^{ + 3}}$
$F{e^{ + 3}}$
$C{o^{ + 3}}$
Which one of the following does not correctly represent the order of property indicated against it
Which of the following is not correct about transition metals
Which of the following element has maximum first ionisation potential
Copper displaces which of the metal from their salt solutions