Presence of $Cr$ in steel makes it
Resistant to chemical action
Useful for making cutlery
Increases chemical action
$(a)$ and $(b) $ both
Consider the hydrated ions of $Ti^{2+}, V^{2+}, Ti^{3+}$ and $Sc^{3+}$. The correct order of their spin-only magnetic moments is
The melting point of $Zn$ is lower as compared to those of the other elements of $3d$ series because
A metal, $M$ forms chlorides in its $+2$ and $+4$ oxidation states. Which of the following statements about these chlorides is correct ?
Explain the variations in atomic radii of transition elements in group.
Which ion is not coloured