A coordinate complex contains ${C o}^{3 +}, {C l}^{-}$ and $N H_{3}$ . When dissolved in water, one mole of this complex gave a total of $3$ moles of ions. The complex is:

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

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[C o {(N H_{3})}_{5} C l] {C l}_{2}

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[C o {(N H_{3})}_{4} {C l}_{2}] C l

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

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Solution

The correct option is A $[C o {(N H_{3})}_{5} C l] {C l}_{2}$

Only the coordination sphere ( coordination species, written inside the bracket) and the ions outside ( written ) of the bracket, are ionised.

Here, the $[C o (N H_{3})_{5} C l] C l_{2}$ is ionised into one mol of $[C o (N H_{3})_{5} C l]^{2 +}$ and 2 mol of $C l^{-}$ , giving 3 moles of ions.

Hence, option $B$ is correct.

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Similar questions

Arrange the following complexes in the increasing order of conductivity of their solution

$[C o (N H_{3})_{3} C l_{3}], [C o (N H_{3})_{4} C l_{2}] C l, [C o (N H_{3})_{6}] C l_{3}, [C o (N H_{3})_{5} C l] C l_{2}$

Q. The correct order of the following complexes according to increasing conductivity of their solutions will be:
(i)

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

(ii)

[C o (N H_{3})_{4} C l_{2}] C l

(iii)

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

(iv)

[C o (N H_{3})_{5} C l] C l_{2}

Q. Among the following, which complex compound is diamagnetic?

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

,
ii)

[N i (N H_{3})_{6}] C l_{2}

,
iii)

[C r (H_{2} O)_{6}] C l_{3}

,
iv)

[F e (H_{2} O)_{6}] C l_{2}

The number of ions per mole of the complex [Co(NH₃)₆]Cl₃ in solution will be:

Q. One mole of the complex compound

C o {(N H_{3})}_{5} {C l}_{3}

, gives 3 moles of ions on dissolution in water. One mole of the same complex reacts with two moles of

A g N O_{3}

solution to yield two moles of

A g C l (s)

. The structure of the complex is:

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A coordinate complex contains Co3+,Cl− and NH3. When dissolved in water, one mole of this complex gave a total of 3 moles of ions. The complex is:

A coordinate complex contains ${C o}^{3 +}, {C l}^{-}$ and $N H_{3}$ . When dissolved in water, one mole of this complex gave a total of $3$ moles of ions. The complex is: