An ion of definite magnetic moment (spin only) is
$Sc^{3+}$
$Ti^{3+}$
$Cu^{2+}$
Both $(b)$ and $(c)$
A metal, $M$ forms chlorides in its $+2$ and $+4$ oxidation states. Which of the following statements about these chlorides is correct ?
Iron becomes passive by ..................... due to formation of .....................
Which of the following does not contain copper
White silver surface turns black when $O_3$ is passed over it. This is due to the formation of
Ionisation potential values of $d-$ block elements as compared to ionization potential value of $ f-$ block elements are