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Reactivity Trends (Group 2)

Which of the ...

Question

Which of the following pair of complexes have the same EAN of the central metal atoms / ions?

A

[C u {(N H_{3})}_{4}] S O_{4}

and

K_{3} [F e {(C N)}_{6}]

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B

K_{4} [F e {(C N)}_{6}]

and

[C o {(N H_{3})}_{6}] C l_{3}

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C

K_{3} [C r {(C_{2} O_{4})}_{3}]

and

[C r {(N H_{3})}_{6}] C l {(N O_{2})}_{2}

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D

All are correct

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Solution

The correct option is D All are correct
EAN value of complexes:
$[C u (N H_{3})_{4}] S O_{4} = 29 - 2 + 8 = 35$
$K_{3} [F e (C N)_{6}] = 26 - 3 + 12 = 35$
$K_{4} [F e (C N)_{6}] = 26 - 2 + 12 = 36$
$[C o (N H_{3})_{6}] C l_{3} = 27 - 3 + 12 = 36$
$K_{3} [C r (C_{2} O_{4})_{3}] = 24 - 3 + 12 = 33$
$[C r (N H_{3})_{6}] C l (N O_{2})_{2} = 24 - 3 + 12 = 33$

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Similar questions

Q. Which one is more stable in the following pairs of complexes? Give reasons.
i)

[C o (N O_{2})_{6}]^{4 -}

[C o (N O_{2})_{6}]^{3 -}

K_{4} [F e (C N)_{6}]

K_{3} [F e (C N)_{6}]

[C O (H_{2} O)_{6}]^{2 +}

[C O (N H_{3})_{6}]^{2 +}

Q. Identify the correct order of flocculation value for

F e (O H)_{3}

Q. Write the IUPAC name of following compounds :
(A)

K_{3} [F e (C N)_{6}

[C o (N H_{3})_{6}] C l_{3}

Q. Among the following complexes (K-P) :

K_{3} [F e (C N_{6}] - K

[C o (N H_{3})_{6}] C l_{3} - L

N a_{3} [C o (o x a l a t e)_{3}] - M

[N i (H_{2} O)_{6}] C l_{2} - N

K_{2} [P t (C N)_{4}] - O

[Z n (H_{2} O)_{6}] (N O_{3})_{2} - P

;
the diamagnetic complexes are:

Q. (i) What are the postulates of Werner's theory?
(ii) Write the IUPAC names fo

K_{3} [F e {(C N)}_{6}]

[C o {(N H_{3})}_{6}] {C l}_{3}

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