Refer to the periodic table given in your book and now answer the following questions:
a. Select the possible non metals that can show disproportionation reaction.
b. Select three metals that can show disproportionation reaction.

Explanation

(a) Non - metals showing disproportonation reactions are : `P_4 , Cl_2 and S_8`
`overset(0) P_4(s)+3OH^(-)(aq) +3H_2O(l) rarroverset(-3)(PH_3)(g) +overset(+3)(3H_2PO_2^(-)(aq))`
`overset(0)(Cl_2)(aq)+2OH^(-)(aq) rarroverset(-1)(Cl^(-))(aq) +overset(+1)(ClO^(-))(aq)+H_2O(l)`
`overset(0)S_8(s)+12OH^(-)(aq) rarroverset(-2)S(aq) +overset(+2)2S_2O_3^(2-)+6H_2O(l)`
(b) Metals exhibiting disproportionation reactions are :
`" "Cu^(+),Ga^(+) In^+`
`overset(+1)(2Cu^(+))(aq)rarroverset(+2)(Cu^(2+))(aq)+overset(0)(Cu(s))`
`overset(+1)(3Ga^(+))(aq)rarroverset(+3" ")(Ga^(3+))(aq)+overset(0)(2Ga(s))`
`overset(+1" ")(3In^(+))(aq)rarroverset(+3" ")(In^(3+))(aq)+overset(0)(2In(s))`