Stainless steel contains ........... $\%$ $Cr$
$14$
$5$
$50$
$2.5$
Which of the following graph is correct representation between atomic number $(Z)$ and magnetic moment of $d-block$ elements? [Outer electronic configuration : $(n -1)d^x\, ns^{1\, or \,2}$]
A copper salt is isomorphic with $ZnS{O_4}$, the salt will be
A substance which is not paramagnetic is
Which of the following is more paramagnetic
Which is a stronger reducing agent $Cr ^{2+}$ or $Fe ^{2+}$ and why?