Copper displaces which of the metal from their salt solutions
$AgN{O_3}$
$ZnS{O_4}$
$FeS{O_4}$
All of these
Which of the following will be coloured ion :
The catalytic activity of transition elements is related to their
The chief constituents of steel made in India are
Invar, an alloy of $ Fe$ and $ Ni $ is used in watches and meter scale, its characteristic property is
The catalytic activity of transition metals and their compounds is ascribed mainly to