question_answer

Arrange the following in order of increasing O.N. of iodine: \[{{I}_{2}},\,HI,\,HI{{O}_{2}},\,KI{{O}_{3}},\,ICl\]

Answer:

                                                  \[{{\overset{0}{\mathop{I}}\,}_{2}},\,H\overset{-1}{\mathop{I}}\,,\,H\overset{+3}{\mathop{I}}\,{{O}_{2}},\,K\overset{+5}{\mathop{I}}\,{{O}_{3}},\,\overset{+1}{\mathop{I}}\,Cl\] The increasing order is: \[HI<{{I}_{2}}<ICl<HI{{O}_{2}}<KI{{O}_{3}}\].