MEDIUM

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Define Facial (fac) isomer.

Important Questions on Coordination Compounds

HARD

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

Complex

X

Of composition

C r {(H_{2} O)}_{6} C l_{n}

Has a spin only magnetic moment of

3.83 B . M .

It reacts with

{A g N O}_{3}

And shows geometrical isomerism. The IUPAC nomenclature of

X

Is:

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

A reaction of cobalt

(III)

chloride and ethylenediamine in a

1 : 2

mole ratio generates two isomeric products

A

(violet-coloured) and

B

(green-coloured).

A

can show optical activity, but,

B

is optically inactive. What type of isomers do

A

and

B

represent?

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

The species that can have a trans-isomer is:

(e n = e t h a n e - 1, 2 - d i a m i n e, o x = o x a l a t e)

EASY

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

Number of stereoisomers exhibited by

{[Co (en)_{2} {Cl}_{2}]}^{+}

HARD

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

The total number of isomers for a square planar complex:

[MCl (F) ({NO}_{2}) (SCN)]

is:

EASY

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

The one that is not expected to show isomerism is:

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

Total number of cis

N - M n - C l

bond angles (that is,

M n - N

and

M n - C l

bonds in cis positions) present in a molecule of cis-

[M n {(e n)}_{2} {C l}_{2}]

complex is _________

(e n = {N H}_{2} {C H}_{2} {C H}_{2} {N H}_{2})

HARD

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

The complex

{|{PtCl}_{2} (en)_{2}|}^{2 +}

ion shows;

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Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

Which of the following complexes will show geometrical isomerism?

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

The number of geometrical isomers of

[{CrCl}_{2} (en) {({NH}_{3})}_{2}],

where en = ethylenediamine, is-

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

How many different compounds are possible for the formula,

K_{3} [Co {(oxalate)}_{2} {Cl}_{2}]

assuming octahedral geometry for the Cobalt-complex ion?

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

The number of geometric isomers that can exist for square planar

{[P t (C l) (p y) (N H_{3}) (N H_{2} O H)]}^{+}

is (py = pyridine):

EASY

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

For an octahedral complex

{MX}_{4} Y_{2}

(

M = a

transition metal,

X

and

Y

are monodentate achiral ligands), the correct statement among the following is

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

The number of possible optical isomers for the complexes

{M A}_{2} B_{2}

with

s p^{3}

and

d s p^{2}

hybridized metal atom, respectively, is:
Note:

A

and

B

are unidentate neutral and unidentate monoanionic ligands, respectively.

EASY

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

[Pt {({NH}_{3})}_{2} {Cl}_{2}]

complex shows _______ isomerism.

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

The number of stereo isomers possible for ${[Co {(ox)}_{2} (Br) ({NH}_{3})]}^{2 -}$ is __________.

[ $ox =$ oxalate]

HARD

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

Number of stereoisomers possible for the octahedral complexes $[Co {({NH}_{3})}_{3} {Cl}_{3}]$ and $[Ni (en)_{2} {Cl}_{2}],$ respectively, are:

[ $en = 1, 2$ -ethylenediamine]

HARD

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

Consider the following reaction and statements:

{[Co {({NH}_{3})}_{4} {Br}_{2}]}^{+} + {Br}^{-} \to [Co {({NH}_{3})}_{3} {Br}_{3}] + {NH}_{3}

(i) Two isomers are produced if the reactant complex ion is a cis-isomer.

(ii) Two isomers are produced if the reactant complex ion is a trans-isomer.

(iii) Only one isomer is produced if the reactant complex ion is a trans-isomer.

(iv) Only one isomer is produced if the reactant complex ion is a cis-isomer.

The correct statements are

HARD

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

The correct statement on the isomerism associated with the following complex ions.

(a)

{[N i {(H_{2} O)}_{5} N H_{3}]}^{2 +}

(b)

{[N i {(H_{2} O)}_{4} {(N H_{3})}_{2}]}^{2 +}

and

(c)

{[N i {(H_{2} O)}_{3} {(N H_{3})}_{3}]}^{2 +}

is:

HARD

Chemistry>Inorganic Chemistry>Coordination Compounds>Isomerism in Coordination Compounds

The correct option(s) regarding the complex

{[Co (en) {({NH}_{3})}_{3} (H_{2} O)]}^{3 +}

is (are)

(en

= H_{2} {NCH}_{2} {CH}_{2} {NH}_{2}

)

Define Facial (fac) isomer.

Important Questions on Coordination Compounds

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