Out of the following two coordination entities which is chiral (optically active)?
(a) $cis-{\left[Cr{Cl}_2{\left(Ox\right)}_2\right]}^{3+}$
(b) $trans-{\left[Cr{Cl}_2{\left(Ox\right)}_2\right]}^{3-}$

Q. Out of the following two coordination entities which is chiral (optically active)?

$A)$ $cis-\left[CrC{l}_2\right(ox{)}_2{]}^{3-}$

$B)$ $trans-\left[CrC{l}_2\right(ox{)}_2{]}^{3-}$

Q.

Which of the following statements is correct regarding the chirality (optical isomerism) of the cis and trans isomers of the type $M(aa{)}_2{b}_2$ (M stands for a metal, a and b are achiral ligands and aa is a bidentate ligand) ?

Q. Match List-I with List-II:

List – I	List – II
(a) [Co(NH3)6] [Cr(CN)6]	(i) Linkage isomerism
(b) [Co(NH3)3 (NO2)3]	(ii) Solvate isomerism
(c) [Cr(H2O)6]Cl3	(iii) Coordination isomerism
(d) cis-[CrCl2(ox)2]3-	(iv) Optical isomerism

Choose the correct answer from the options given below:

Q. Which of the following compounds show optical isomerism?
I. cis$-\left[Co\right(N{H}_3{)}_{4}C{l}_2{]}^{+}$ II. trans$-\left[Co\right(en{)}_{2}C{l}_2{]}^{+}$
III. cis$-\left[Co\right(en{)}_{2}C{l}_2{]}^{+}$ IV. $\left[Co\right(en{)}_3{]}^{3+}$

Q. Which of the following will show optical isomers?
(I) $Cis-\left[Co\right(N{H}_3{)}_2(en{)}_2{]}^{3+}$ (II) $Trans-\left[IrC{l}_2\right(C_2{O}_4{)}_2{]}^{3-}$ (III) $\left[Rh\right(en{)}_3{]}^{3+}$ (IV) $cis-\left[Ir\right(H_{2}O{)}_{3}C{l}_3]$.