Which forms coloured salts
Metals
Non-metals
$p -$ block elements
Transitional elements
For $d-$ block elements the first ionization potential is of the order
Melting point of $FeCl_3$ and $FeCl_2$ is
For the following Assertion and Reason, the correct option is
Assertion : For hydrogenation reactions, the catalytic activity increases from Group $5$ to Group $11$ metals with maximum activity shown by Group $7-9$ elements.
Reason : The reactants are most strongly adsorbed on group $7-9 $ elements.
Consider the hydrated ions of $Ti^{2+}, V^{2+}, Ti^{3+}$ and $Sc^{3+}$. The correct order of their spin-only magnetic moments is
Stainless steel contains ........... $\%$ $Cr$