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Standard XII

Chemistry

Coordination Complexes

Which of the ...

Question

Which of the following complex will give white precipitate with BaCl $_{2}$ (aq)?

[Co(NH

_{2})_{4} S O_{4}] N O_{2}

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[Cr(NH

_{3})_{5} S O_{4}

]Cl

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[Cr(NH

_{3})_{5} C l] S O_{4}

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Both

B

and

C

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Solution

The correct option is D [Cr(NH $_{3})_{5} C l] S O_{4}$
Since the reagent is $B a C l_{2} (a q)$ , displacement reaction will take place. The resulting solution, if insoluble in water, will form a white precipitate. Both $B a N O_{2}$ and $B a C l_{2}$ are soluble in water and hence will not form a precipitate. $B a S O_{4}$ , however, is insoluble in water and hence forms a white precipitate. Therefore C is the correct answer

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Similar questions

Q. The complexes [Cr(NH

_{3}

)

_{6}

] [Co(CN)

_{6}

] and [Co(NH

_{3}

)

_{6}

] [Cr(CN)

_{6}

] are not the examples of:

Q. A metal complex having composition Cr(NH

_{3}

)

_{4}

_{2}

Br has been isolated in two forms A and B. The form A reacts with

A g N O

_{3}

to give a white precipitate readily soluble in dilute aqueous ammonia, whereas B gives a pale-yellow precipitate soluble in concentrated ammonia.The magnetic moments (spin- only value) of A and B are respectively:

$C o S O_{4} C l .5 N H_{3}$ exists in two isomeric forms 'A and 'B'. Isomer 'A' reacts with $A g N O_{3}$ to give white precipitate, but does not react with $B a C l_{2} .$ Isomer 'B' gives white precipitate with $B a C l_{2}$ but does not react with $A g N O_{3} .$ Answer the following questions.
(a) Identify \A' and 'B' and white their structural formulae
(b) Name the type of isomerism involved.
(c) Give the IUPAC name of 'A' and 'B'.

Q. Which of the following complex will give white precipitate with

B a C l_{2} (a q)

Q. The octahedral complex

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

exists in two isomeric forms X and Y. Isomer 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}

. Isomer X and Y are

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Which of the following complex will give white precipitate with BaCl2 (aq)?

Which of the following complex will give white precipitate with BaCl $_{2}$ (aq)?