Geometrical Isomerism in Octahedral Geometry

Q. Which of the following complex species 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. The number of isomers possible for disubstituted borazine, $B_3{N}_3{H}_4{X}_2$ is:

1. $3$
2. $4$
3. $6$
4. $5$

Q.

Correct electronic configuration of d-orbital of iron in complex anion $[\mathrm{Fe}{\left(\mathrm{CN}\right)}_6{]}^{4-}$is (atomic no. of iron is $26$)?

Q. Out of the following which will show geometrical isomerism as facial and meridional isomers?

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

Q. The existence of two different coloured complexes with the composition of [Co(NH3)4Cl2]+ is due to 1) linkage isomerism 2) geometrical isomerism 3) co-ordinate isomerism 4) ionisation isomerism

Q. How many isomers are possible in $\left[Cr{\left(en\right)}_{2}B{r}_2\right]$?

Q. Total number of relatively more stable isomer$\left(s\right)$ possible for octahedral complex $\left[Cu\right(en{)}_2\left(SCN{)}_2\right]$ will be ______.

Q.

The ion or group detected by ${\text{K}}_{\text{2}}{\text{[HgI}}_{\text{4}}\text{]}$ is _______.

Q. Read the following questions and answer as per the directions given below:

Statement I: The geometrical isomers of the complex $\left[M\right(N{H}_3{)}_{4}C{l}_2]$ are optically inactive.
Statement II: Both geometical isomers of the complex $\left[M\right(N{H}_3{)}_{4}C{l}_2]$ possess axis of symmetry.
(IIT-JEE, 2008)

1. Statement I is true; Statement II is also true; Statement II is a correct explanation for Statement-I.
2. Statement I is true; Statement II is false.
3. Statement I is true; Statement II is true.
4. Statement I is true; Statement II is true; Statement II is not the correct explanation for Statement-I.

Q. Which of the following compounds will show metamerism ?

1. $C{H}_3-S-C_3{H}_7$
2. $C_2{H}_5-S-C_2{H}_5$
3. $C{H}_3-O-C{H}_3$
4. $C{H}_3-O-C_2{H}_5$

1. 1 and 2
2. 3 and 4
3. 2 and 3
4. 1 and 4

Q.

Number of possible isomers for the complex $\left[Co\right(en{)}_{2}C{l}_2]Cl$ will be (en = ethylenediamine)

1. 3

2. 4

3. 2

4. 1

Q.

Draw all the isomers (geometrical and optical) of:
${\left[CoC{l}_2{\left(en\right)}_2\right]}^{+}$

${\left[Co\left(N{H}_3\right)Cl{\left(en\right)}_2\right]}^{2+}$

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

Q. The maximum number of possible isomers (including stereoisomers) which may be formed on mono-bromination of $1-methylcyclohex-1-ene$ using $B{r}_2$ and $UV$ light, is: .

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

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

Q. Write the names of the monomers of the following polymers:
(a) Bakelite
(b) Nylon - 6, 6

Q. Which of the following is not an example of addition polymer?

1. Terylene
2. Polystyrene
3. Neoprene
4. Polythene

Q. Among the following complex ions,
$\left(i\right)\left[Co\right(N{H}_3{)}_4\left(H_{2}O\right)Cl{]}^{2+}\left(ii\right)\left[Pt\right(N{H}_3{)}_{2}C{l}_2\left]\right(iii\left)\right[CoC{l}_2\left(en{)}_2{]}^{+}\right(iv\left)\right[Cr\left(H_{2}O{)}_{5}Cl\right]C{l}_2\left(v\right)\left[Fe\right(N{H}_3{)}_2\left(CN{)}_4{]}^{-}\right(vi\left)\right[CrC{l}_2\left(ox{)}_2{]}^{3-}\right(vii\left)K\right[Co\left(H_{2}O{)}_2\right(ox{)}_2\left]\right(viii\left)\right[Co\left(N{H}_3{)}_{2}C{l}_2\right(en\left){]}^{+}\right(ix\left)\right[Co\left(en{)}_3\right]C{l}_3$
The number of complex ion(s) that show(s) $\text{cis-trans}$ isomerism is:

Q. The number of geometrical isomers of $\left[Co\right(N{H}_3{)}_3\left(N{O}_3{)}_3\right]$ are:

1. 0
2. 2
3. 3
4. 4

Q. Which one of the following complexes shows optical isomerism?

1. $\left[Co\right(N{H}_3{)}_{4}C{l}_2]Cl$
2. $\left[Co\right(N{H}_3{)}_{3}C{l}_3]$
3. $cis\left[Co\right(en{)}_{2}C{l}_2]Cl$
4. trans $\left[Co\right(en{)}_{2}C{l}_2]Cl$

Q. Which one of the following complexes is not expectedto exhibit isomerism ?(1) \lbrack Ni(NH, ), (HO(2) \lbrack Pt (NH) CI2\rbrack(3) \lbrack Ni (NH)2Cl2)\rbrack(4) \lbrack Ni(en) l\ast\lbrack AIPMT (Mains)-2010\rbrack3742 2

Q. The correct structures of $\text{trans -}\left[NiB{r}_2\right(PP{h}_3{)}_2]$ and $\text{meridional -}\left[Co\right(N{H}_3{)}_3\left(N{O}_2{)}_3\right]$ respectively are:

1. 
2. 
3. 
4. 

Q. Write all the geometrical isomers of $\left[Pt\right(N{H}_3\left)\right(Br\left)\right(Cl\left)\right(py\left)\right]$ and how many of these will exhibit optical isomers?

Q. Three arrangements are shown for the complex $\left[Co\right(en\left)\right(N{H}_3{)}_{2}C{l}_2{]}^{+}.$ Pick up the wrong statement(s)

1. I and II are geometrical isomers
2. II and III are optical isomers
3. I and III are optical isomers
4. II and III are geometrical isomers

Q. The number of geometrical isomers of $\left[Co\right(N{H}_3{)}_3\left(N{O}_3{)}_3\right]$ are:

1. $4$
2. $2$
3. $3$
4. $0$

Q. Consider the following complex:
$\left[M\right(N{H}_3{)}_4\left(H_{2}O\right)\left(Cl\right)]$
Find the total number of stereoisomers-

Q. What are the monomeric repeating units of Nylon-$6$ and Nylon-$6,6$?

Q. How many geometric isomers are possible in the following coordination entities?
(a)$\left[Cr\right(OX{)}_3{]}^{3-}$
(b)$\left[CoC{l}_3\right(N{H}_3{)}_3]$

1. 0, 2
2. 2, 0
3. 2, 2
4. 4, 0

Q. Total number of $cis-N-Mn-Cl$ bond angles (that is, Mn - N and Mn - Cl bonds in cis positions) present in a molecule of cis-$\left[Mn\right(en{)}_{2}C{l}_2]$ complex is $(en=N{H}_{2}C{H}_{2}C{H}_{2}N{H}_2)$

Q. why we cant replace all water molecules with chlorine atom in hydrate isomerism?

Q.

The total number of geometrical isomers possible for $\left[M\right(HO{\left(C{H}_2\right)}_{2}N{H}_2{)}_2{Br}_2]$ is:

1. 2
2. 4
3. 5
4. 6