The ionic radius of $Cr$ is minimum is which of the following compounds
$K_2CrO_4$
$CrF_3$
$CrO_2$
$CrCl_3$
The melting point of $Zn$ is lower as compared to those of the other elements of $3d$ series because
Which of the following is arranged in order of increasing melting point?
The number of unpaired electrons is maximum in (Atomic no. : $ Ti = 22; V= 23; Cr = 24; Fe = 26$)
All $Zn( +II)$ compounds are white because