The correct order of decreasing third ionisation enthalpy of $Ti,\, V,\, Cr,\, Mn$ is
$Mn > Cr > V > Ti$
$Ti > V > Cr > Mn$
$Cr > Mn > V > Ti$
$V > Mn > Cr > Ti$
White silver surface turns black when $O_3$ is passed over it. This is due to the formation of
Which of the following have maximum number of unpaired electrons
A pink colored salt on dry heating becomes blue in colour. Salt may contain
Which occludes hydrogen