Question

Select the correct statement set?

(1) Bis-(glycinato) Zinc (II) is optically active

(2) $\left[ NiCl _{4}\right]^{2-}$ and $\left[ PtCl _{4}\right]^{2-}$ differ in shapes

(3) $\left[ Ni ( CN )_{4}\right]^{2-}$ and $\left[ Ni ( CO )_{4}\right]$ have same magnetic moment

(4) $Cis -\left[ Co \left( NH _{3}\right)_{2}( en )_{2}\right]$ cannot show optical activity

• A. 1, 2
• B. 1, 3
• C. 1, 2, 3
• D. 1, 3, 4

Answer 1

Answer: (C)

Here statement 1, 2 and 3 are correct while 4 is incorrect.

(1) Bis-(glycinato) Zinc (II) is optically active

(2) $\left[\right.NiCl_{4}\left]\right.^{2 -}$ and $\left[\right.PtCl_{4}\left]\right.^{2 -}$ differ in shapes i.e. tetrahedral and square planar respectively

Here statement 1,2 and 3 are correct while 4 is incorrect.

(1) Bis-(glycinato) Zinc (II) is optically active

(2) $\left[ NiCl _{4}\right]^{2-}$ and $\left[ PtCl _{4}\right]^{2-}$ differ in shapes i.e. tetrahedral and square

planar respectively

(3) $\left[ Ni ( CN )_{4}\right]^{2-}$ and $\left[ Ni ( CO )_{4}\right]$ have zero magnetic moment

(4) As cis- $\left[ Co \left( NH _{3}\right)_{2}( en )_{2}\right]$ can show optical activity.