Ncert Exercises & Solutions

Which of the following complexes show linkage isomerism?

$(a) {[Co {({NH}_{3})}_{5} ({NO}_{2})]}^{2 +}$
$(b) [Co {(H_{2} O)}_{5} CO]^{3 +}$
$(c) [Cr {({NH}_{3})}_{5} SCN]^{2 +}$
$(d) {[Fe {(en)}_{2} {Cl}_{2}]}^{+}$

Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, c)

Coordination compounds containing a ligand with more than one non-equivalent binding

Position (known as ambident ligand) show linkage isomerism

$[C o (N H]$ ₃)5(NO₂)+ contains NO $_{2}$ which have two donor sites N and © can be shown by

arrow (9) as

$[C r (N H]$ ₃)5SCN2+ contains SCN which have two different donor sites S and N can be shown by arrow ( $\to$ ) as

$\to S — C = N \leftarrow$

Hence, ${[C o (N H_{3}) (N O_{2}]}^{2 +} a n d [C r (N H]$ ₃)5SCN)2+ show linkage isomerism. While

${[C o (H_{2} O_{5} C O)]}^{3 +} a n d {[F e {(e n)}_{2} C l_{2}]}^{+}$ has no ambident ligand, So, these two will not show

linkage isomerisrn.

Hence, options (a) and (c) are correct choices.

NEET Information

courses

Company

Botany Questions

Chemistry Questions

Physics Questions

Zoology Questions