Ncert Exercises & Solutions

Q. 48 CoSO $_{4}$ Cl-5NH, exists in two isomeric forms ‘A’ and ‘B’ Isomer ‘A’ reacts

with AgNO $_{3}$ to give white precipitate, but does not react with BaCl,.

Isomer ‘B’ gives white precipitate with BaCl $_{2}$ but does not react with

AgNO. Answer the following questions.

(a) Identify ‘4’ and ‘8’ and write their structural formulae.

(b) Name the type of isomerism involved.

‘A’ gives precipitate with AgNO $_{3}$ so in it Clis present outside the coordination sphere.

'B' gives precipitate with BaCl $_{2}$ so in it $S O_{4}^{2 -}$ is present outside the coordination sphere

(a) So, A-[Co(NH $_{3})_{5}$ SO,] Cl

B-[Co(NH $_{3})_{5} C l] S O_{4}$

(b) lonisation isomerism (as give different ions when subjected to ionisation.)