Which of the following is arranged in order of increasing melting point?
$Zn < Cu < Ni < Fe$
$Fe < Ni < Cu < Zn$
$Ni < Fe < Zn < Cu$
$Cu < Zn < Fe < Ni$
Correct order of atomic Radii (Metallic radii)
Which of the following ions is paramagnetic
Coloured salts are formed by
Which one of the following has the maximum number of unpaired electrons
The alloy of steel that is used in making automobile parts and utensils