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Coordination and Oxidation Number

On adding K...

Question

On adding ${K N O}_{2}$ and ${C H}_{3} C O O H$ solution to the neutral solution of ${C o C l}_{2}$ , there is formation of yellowish orange precipitate of :

A

K_{3} [{C o ({N O}_{2})}_{6}]

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B

K_{4} [{C o ({N O}_{2})}_{6}]

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C

K_{3} [{C o ({N O}_{2})}_{4} ({C H}_{3} C O O)_{2}]

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D

K_{2} [{C o ({N O}_{2})}_{4}]

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Solution

The correct option is A $K_{3} [{C o ({N O}_{2})}_{6}]$
On adding ${K N O}_{2}$ and ${C H}_{3} C O O H$ solution to the neutral solution of ${C o C l}_{2}$ , there is formation of yellowish orange precipitate of $K_{3} [{C o ({N O}_{2})}_{6}]$ .
$6 K N O_{2} + C H_{3} C O O H + C o C l_{3} \to K_{3} [{C o ({N O}_{2})}_{6}] + 2 K C l + C H_{3} C O O K + 0.5 H_{2}$

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Similar questions

{K N O}_{2}

{C H}_{3} C O O H

{C o C l}_{2}

solution, yellow ppt. of

K_{4} [{C o ({N O}_{2})}_{6}]

If the given statement is true enter 1 else enter 0.

Q. Yellow ppt of

K_{3} [{C o ({N O}_{2})}_{6}]

{C o C l}_{2}

reacts with excess of

{K N O}_{2}

{C H}_{3} C O O H

If the given above statement is true enter 1 else 0.

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. The compound

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

Q. The I.U.P.A.C name for

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

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