Why $E^o$ values for $Mn,\,Ni$ and $Zn$ are more negative than expected ?
Which of the following order is correct
The statement that is $INCORRECT$ about the interstitial compound is
An oxide of copper which is red in colour has the formula
Properties common to the elements manganese, iron, cobalt, nickel and copper include the ready formation by them all of
$(I)$ coloured ions in aqueous solution
$(II)$ oxides of nitrogen are formed on reaction with concentrated $HNO_3$
$(III)$ chlorides of formula $MCl_2$ and $MCl_3$
Highest $(+7) $ oxidation state is shown by