EASY

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If we consider that isomerism in alkanes is exhibited only by changing the orientation of carbon atoms and the alkane has no functional group, then minimum number of carbon atoms required for alkanes to exihibit isomerism.

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Important Questions on Coordination Compounds

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 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):

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

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)

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:

MEDIUM

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

The one that will show optical activity is
(

en =

ethane

- 1, 2 -

diamine)

MEDIUM

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

An octahedral complex with molecular composition M.5NH₃.Cl.SO₄ has two isomers, A and B. The solution of A gives a white precipitate with AgNO₃ solution and the solution of B gives white precipitate with BaCl₂ solution .The type of isomerism exhibited by the complex is :

MEDIUM

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

The number of possible optical isomers for the complexes