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Oxides and Oxoanions

Both Co3+ a...

Question

Both $C o^{3 +}$ and $P t^{4 +}$ have a coordination number of $6$ . Which of the following pairs of complexes will show approximately the same electrical conductance for their $0.001 M$ aqueous solutions ?

C o C l_{3} .4 N H_{3}

and

P t C l_{4} .4 N H_{3}

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C o C l_{3} .3 N H_{3}

and

P t C l_{4} .5 N H_{3}

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C o C l_{3} .6 N H_{3}

and

P t C l_{4} .5 N H_{3}

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C o C l_{3} .5 N H_{3}

and

P t C l_{4} .6 N H_{3}

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Solution

The correct option is B $C o C l_{3} .6 N H_{3}$ and $P t C l_{4} .5 N H_{3}$
$C o C l_{3} .6 N H_{3}$ and $P t C l_{4} .5 N H_{3}$ will show approximately the same electrical conductance for their $0.001$ M aqueous solutions as they give same number of ions on dissociation.

$C o C l_{3} .6 N H_{3} \to [C o (N H_{3})_{6}]^{3 +} + 3 C l^{-}$

$P t C l_{4} .5 N H_{3} \to [P t (N H_{3})_{5} C l]^{3 +} + 3 C l^{-}$

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Similar questions

Q. The molar ionic conductances of the octahedral complexes.
( I )

P t C l_{4} .5 N H_{3}

( II )

P t C l_{4} .4 N H_{3}

( III )

P t C l_{4} .3 N H_{3}

( IV )

P t C l_{4} .2 N H_{3}

Q. Draw Werner's structure of the following:
(a)

C o C l_{3} . 6 N H_{3}

(b)

C o C l_{3} . 5 N H_{3}

(c)

C o C l_{3} . 4 N H_{3}

(d)

C o C l_{3} . 3 N H_{3}

Q. A complex

P t {C l}_{4} .5 {N H}_{3}

shows a molar conductance of

402 {o h m}^{- 1}

{c m}^{- 1}

{m o l}^{- 1}

in water and precipitates three moles of

A g C l

with

A g {N O}_{3}

solution. The formula of the complex is:

Q. A complex

P t C l_{4} .5 N H_{3}

shows a molar conductance of

402 {ohm}^{- 1} {cm}^{2} {mol}^{- 1}

in water and precipitates 3 moles of

A g C l

with

A g N O_{3}

solution. The formula of the complex is:

Q. Given the molecular formula of the hexa coordinated complexes (A)

{C o C l}_{3} . {6 N H}_{3}

(B)

{C o C l}_{3} . {5 N H}_{3}

(C)

{C o C l}_{3} . {4 N H}_{3}

. If the number of coordinated

{N H}_{3}

molecules in

A, B

and

C

respectively are

6, 5

and

4

, primary valency in

(A), (B)

and

(C)

are

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Both Co3+ and Pt4+ have a coordination number of 6. Which of the following pairs of complexes will show approximately the same electrical conductance for their 0.001 M aqueous solutions ?

The correct option is B CoCl3.6NH3 and PtCl4.5NH3CoCl3.6NH3 and PtCl4.5NH3 will show approximately the same electrical conductance for their 0.001 M aqueous solutions as they give same number of ions on dissociation.CoCl3.6NH3→[Co(NH3)6]3++3Cl−PtCl4.5NH3→[Pt(NH3)5Cl]3++3Cl−

Both $C o^{3 +}$ and $P t^{4 +}$ have a coordination number of $6$ . Which of the following pairs of complexes will show approximately the same electrical conductance for their $0.001 M$ aqueous solutions ?