Question

Which is right combination?

(a) Hydrate isomerism-$\left[Co\right(H_{2}O{)}_{3}C{l}_3]3H_{2}O$ and $\left[Co\right(H_{2}O{)}_6]C{l}_3$

(b) Ionisation isomerism-$\left[Co\right(N{H}_3{)}_{5}Br]S{O}_4$ and $\left[Co\right(N{H}_3{)}_{5}S{O}_4]Br$

(c) Geometrical isomerism-$MC{l}_{2}B{r}_2$

• A. a and b
• B. b and c
• C. a and c
• D. a , b and c

Answer 1

Answer: (D)

a , b and c

a) Hydrate isomers differ by whether or not a hydrate molecule is directly bonded to the metal ion or merely present as free solvent molecules in the crystal lattice. In the given example also same thing occured. So they are hydrate isomers.

b) Here $S{O}_4^{-2}$ of first complex which is a counter ion, acts as a ligand to the second complex. This type of isomerism is called ionization isomerism.

c) $MC{l}_{2}B{r}_2$ are geometrical isomersim if they have required planar structure.

All are correct.