Which of the following molecules / ions can exhibit isomerism?
(A) Tetrahedral `NiCI_2 Br_2^(2-)`Tetrahedral `NiCI_2 Br_2^(2-)`
(B) Square planar `Pt (NH_3)_2 CI_2`
( C) Octahedral `Co(NH_3)_3 CI_3`
(D) Square planar `Pd(NH_3)_3 Br^+`
(E) Octahedral `Co (end)_3^(3+)`
where, end = 1,2 - di amino ethane

Options

A. (i), (ii), (iii), (iv)
B. (ii), (iii), (v)
C. (ii), (iii), (iv)
D. (i), (ii), (iii), (v)

Answer

B

Explanation

To exhibit isomerism symmetry of molecular structure is important. Structure of given compounds explain their isomeric nature.
(i) `NiCl_(2)Br_(2)^(2-) to "tetrahedral "to "no isomers."`

(ii) `Pt(NH_(3))_(2)Cl_(2)to" square planar "to" have isomers."`

(iii) `Co(NH_(3))_(3)Cl_(3)to" octahedral "to "have isomers."`

(iv) `Pd(NH_(3))_(3)Br^(+)to "square planar "to "no isomers."`

(v) `Co(en)_(3)^(3+) to" octahedral "to" have isomers."`