Although $Zr$ belongs to $4d$ and $Hf$ belongs to $5d$ transition series but it is quite difficult to separate them. Why ?

Similar Questions

Which of the following species is expected to show the highest magnetic moment? (At. Nos.: $Cr=24$,  $Mn = 25$,  $Co = 27$,  $Ni = 28$,  $Cu = 29)$ 

$Cu^+$ ion is not stable in aqueous solution, due to

Assertion : Transition metals are good catalysts.

Reason : $V_2O_5$ or $Pt$ is used in the preparation of $H_2SO_4$ by contact process.

  • [AIIMS 2015]

The element the usually does $NOT$ show variable oxidation states is

  • [JEE MAIN 2019]

Calculate the 'spin only' magnetic moment of $M ^{2+}(\operatorname{aq})$ ion $(Z=27)$