Optical Isomerism in Octahedral Coordination of Monodentate Ligands

Q.

The complex that can show optical activity

1. cis– ${\left[{\mathrm{CrCl}}_2{\left(\mathrm{ox}\right)}_2\right]}^{3-}$(ox – oxalate)

2. trans –${\left[\mathrm{Fe}{\left({\mathrm{NH}}_3\right)}_2{\left(\mathrm{CN}\right)}_4\right]}^{-}$

3. trans –${\left[\mathrm{Cr}\left({\mathrm{Cl}}_2\right){\left(\mathrm{ox}\right)}_2\right]}^{-3}$

4. cis– ${\left[\mathrm{Fe}{\left({\mathrm{NH}}_3\right)}_2{\left(\mathrm{CN}\right)}_4\right]}^{-}$

Q. Given below are two statements.

Statement I: The compound is optically active.

Statement II: is mirror image of above compound $A$. In the light of the above statement, choose the most appropriate answer from the options given below.

1. Statement I is incorrect but Statement II is correct.
2. Both Statement I and Statement II are incorrect.
3. Statement I is correct but Statement II is incorrect.
4. Both Statement I and Statement II are correct.

Q. Which of the following is optically inactive?

1. 
2. 
3. 
4. 

Q. Both geometrical and optical isomerism are shown by:

1. $\left[Co\right(en{)}_{2}C{l}_2{]}^{+}$
2. $\left[Co\right(N{H}_3{)}_{5}Cl{]}^{2+}$
3. $\left[Co\right(N{H}_3{)}_{4}C{l}_2{]}^{+}$
4. $\left[Cr\right(ox{)}_3{]}^{3-}$

Q. Which one of the following octahedral complexes will not show geometrical isomerism?(A and B are monodentate ligands )

1. $\left[M{A}_{5}B\right]$
2. $\left[M{A}_2{B}_4\right]$
3. $\left[M{A}_3{B}_3\right]$
4. $\left[M{A}_4{B}_2\right]$

Q. Which of the following(s) will not be able to show optical isomerism?

1. $1,2-$Propadiene
2. $2,3-$ Pentadiene
3. $sec-$Butyl alcohol
4. $2,3,4-$Hexatriene

Q.

Is 2-Methylpentane optically active?

Q.

Is 3–Methylhexane optically active?

Q.

Which of the following complexes is not expected to exhibit optical isomerism ?

1. $\left[Co\right(en{)}_3{]}^{3+}$

2. $\left[Co\right(en{)}_{2}C{l}_2{]}^{⨁}$

3. $\left[Co\right(N{H}_3{)}_{3}C{l}_3]$

4. $\left[Co\right(en\left)\right(N{H}_3{)}_{2}C{l}_2{]}^{⨁}$

Q. Which of the following compound are optically active
$a=OC{H}_3,b=NHCOC{H}_3,C=C{H}_3,d=C{H}_{2}C{H}_3$

1. $I$ only
2. $III$ only
3. $I$ and $III$
4. $II$ and $III$

Q. Which of the following compound are optically active
$a=OC{H}_3,b=NHCOC{H}_3,C=C{H}_3,d=C{H}_{2}C{H}_3$

1. $I$ only
2. $III$ only
3. $I$ and $III$
4. $II$ and $III$

Q. The number of stereoisomers possible for $\left[Co\right(ox{)}_2\left(Br\right)\left(N{H}_3\right){]}^{2-}$ is.
[ox = oxalate]

Q. The R and S enantiomers of an optically active compound differ in:

1. their solubility in achiral reagents
2. their melting points
3. their optical rotation of plane polarized light
4. their reactivity with chiral reagents

Q. Which of the following statements is not true about the complex ion, $\left[CrCl\right(N{O}_2\left)\right(en{)}_2{]}^{+}$?
(en = enthylene diamine)

1. It has two geometrical isomers-cis and trans
2. Cis and trans forms are not diastereomers to each other
3. Only the cis isomer displays optical activity
4. It has three optically active isomers: $d,l$ and meso form

Q. Both geometrical and optical isomerism are shown by: