All $Cu(II)$ halides are known except $CuI_2$,because ....

$E^{\circ}_{M^{3+} \mid M^{2+}} \text{ (in } V\text{) is highest for}$

Give examples and suggest reasons for the following features of the transition metal chemistry:
$(i)$ The lowest oxide of transition metal is basic,the highest is amphoteric/acidic.
$(ii)$ $A$ transition metal exhibits highest oxidation state in oxides and fluorides.
$(iii)$ The highest oxidation state is exhibited in oxoanions of a metal.

In which of the following,ions are correctly arranged in the increasing order of oxidizing power?

Concentrated sodium hydroxide can separate a mixture of

Which one of the following oxides is ionic?