Question

How many of the following disproportionate on treatment with NaOH (under suitable conditions)
(i) $B$ (ii) $C$ (iii) $Si$ (iv) $F_2$ (v) $C{l}_2$ (vi) $B{r}_2$ (vii) $l_2$ (viii) $P_4$ (ix) $S$ ___

Answer 1

$C{l}_2,B{r}_2,I_2,P_4\&S$ disproportionate