From the periodic table select three non metals and three metals which can show dispropportionation rections.

Explanation

Non metals and metals lwhich show variable oxidation states can take part in the disproportionation reactions. For examples,
Non metals: The metals showing disproportionation reactions states are: `P_(4),CI_(2) and S_(8)`
`(i)overset(0)P_(4)(s)+3OH^(-)(aq)+3H_(2)O(l)rarroverset(-3)PH_(3)(g)+3H_(2)overset(+1)PO_(2)^(-)(aq)`
`(ii) overset(0)CI_(2)(g)+2OH^(-)(aq)rarroverset(+1)CIO^(-)(aq)+H_(2)O(l)`
`(iii) overset(0)S_(8)(s)+12OH^(-)(aq)rarr4overset(-2)S^(2-)(aq)+2overset(+2)S_(2)O_(3)^(2-)(aq)+6H_(2)O(l)`
Metal: The metals showing disproportionation reaction are: `Cu^(+),Ga^(+)` and `Mn^(6+)`:
`(i)2[overset(+1)Cu(aq)]^(+)rarroverset(0)Cu(s)+[overset(+2)Cu(aq)]^(2+)`
`(ii) 3[overset(+1)Ga(aq)]^(+)rarr[overset(+3)Ga(aq)]^(3+)+2overset(0)Ga (s)`