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Byju's Answer

Standard XII

Chemistry

Chemical Properties of Alcohol

An isomer of ...

Question

An isomer of the complex $C o B r C l_{2} (e n)_{2} (H_{2} O)$ , on reaction with concentrated $H_{2} S O_{4}$ (dehydrating agent), suffers no loss in weight and on reaction with $A g N O_{3}$ solution it gives only white precipitate, which is soluble in $N H_{3}$ solution.

The incorrect statement about complex is:

It can show geometrical isomerism

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Cis isomer is optically active

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Trans isomer is optically active

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It can exhibit solvate isomerism

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Solution

The correct option is C Trans isomer is optically active
Trans form of the complex $[C o B r (H_{2} O) (e n)_{2}] C l_{2}$ is optically inactive.

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Similar questions

Q. An isomer of the complex

C o B r C l_{2} (e n)_{2} (H_{2} O)

, on reaction with concentrated

H_{2} S O_{4}

(dehydrating agent), suffers no loss in weight and on reaction with

A g N O_{3}

solution it gives only white precipitate, which is soluble in

N H_{3}

solution.

The correct formula of the complex is:

Q. An octahedral complex with molecular composition

M .5 N H_{3} . C l . S O_{4}

has two isomers,

A

and

B

. The solution of

A

gives a white precipitate with

A g N O_{3}

solution and the solution of

B

gives white precipitate with

B a C l_{2}

solution. The type of isomerism exhibited by the complex is:

Q. A colourless crystalline salt, on being heated, gives a colourless gas with a pungent smell. On being passed through an

A g N O_{3}

solution, this gas forms a white precipitate insoluble in

H N O_{3}

but readily soluble in an

N H_{3}

solution. Which of the following reactions can lead to the above observation ?

Q. The octahedral complex

C o S O_{4} C l_{5} N H_{3}

exists in two isomeric forms

X

and

Y

. Isomers

X

reacts with

A g N O_{3}

to give a white precipitate, but does not react with

B a C l_{2}

. Isomer

Y

gives white precipitate with

B a C l_{2}

but does not react with

A g N O_{3}

.
Isomers

X

and

Y

are:

Q. Which of the compounds is soluble in conc.

H_{2} S O_{4}

, decolourises Bromine

C C l_{4}

and give a white precipitate with

A g N O_{3}

N H_{4} O H

but does not give a precipitate with

A g N O_{3}

in alcohol?

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An isomer of the complex CoBrCl2(en)2(H2O), on reaction with concentrated H2SO4 (dehydrating agent), suffers no loss in weight and on reaction with AgNO3 solution it gives only white precipitate, which is soluble in NH3 solution. The incorrect statement about complex is:

The correct option is C Trans isomer is optically activeTrans form of the complex [CoBr(H2O)(en)2]Cl2 is optically inactive.

The correct option is C Trans isomer is optically active
Trans form of the complex $[C o B r (H_{2} O) (e n)_{2}] C l_{2}$ is optically inactive.