Which pair of compound is expected to show similar colour in aqueous medium
$FeC{l_2}$ and $CuC{l_2}$
$VOC{l_2}\,{\rm{and }}CuC{l_2}$
$VOC{l_2}{\rm{ and }}FeC{l_2}$
$FeC{l_2}{\rm{ and }}MnC{l_2}$
Which of the following pair both compounds have no exsistance
Iron becomes passive by ..................... due to formation of .....................
Misch metal an alloy of
The atomic radii from $Cr$ to $Cu$ is almost identical because of
Which of the following order is not correct