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Standard XII

Chemistry

Valence Bond Theory

Addition of e...

Question

Addition of excess aqueous ammonia to a pink coloured aqueous solution of $M C l_{2} . H_{2} O (x) a n d N H_{4} C l$ gives an octahedral complex Y in the presence of air. In aqueous solution, complex Y behaves as 1:3 electrolyte. The reaction of X with excess HCl at room temperature results in the formation of a blue coloured complex Z. The calculated spin only magnetic moment of X and Z is 3.87 B.M., whereas it is zero for complex Y.
Among the following options, which statemet(s) is (are) correct?

The hybridization of the central metal ion in Y is $d^{2} s p^{3}$

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Addition of silver nitrate to Y gives only two equivalents of silver chloride

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When X and Z are in equilibrium at $0^{\circ},$ the colour of the solution is pink

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Z is a tetrahedral complex

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Solution

The correct option is D
Z is a tetrahedral complex

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Similar questions

Q. Addition of excess aqueous ammonia to a pink coloured aqueous solution of

M C l_{2} .6 H_{2} O (X)

and

N H_{4} C l

gives an octahedral complex Y in the presence of air. In aqueous solution, complex `I behaves as I :3 electrolyte. The reaction of X with excess HCI at room temperature results in the formation of a blue coloured complex Z. The calculated spin only magnetic moment of X and Z is 3.87 B.M.. whereas it is zero for complex Y.
Among the following options, which statements is(are) CORRECT ?

Q. Addition of excess aqueous ammonia to a pink coloured aqueous solution of

M C l_{2} .6 H_{2} O (X)

and

N H_{4} C l

gives an octahedral complex Y in the presence of air. In aqueous solution, complex Y behaves as 1 :3 electrolyte. The reaction of X with excess

H C l

at room temperature results in the formation of a blue coloured complex Z. The calculated spin only magnetic moment of X and Z is 3.87 B.M., whereas it is zero for the complex Y. Among the following options, which statement(s) is/are correct?

Q. Addition of excess aqueous ammonia to a pink coloured aqueous solutions of

M C l_{2} .6 H_{2} O (X) and N H_{4} C l

gives an octahedral complex Y in the presence of air. In aqueous solution, complex Y behaves as 1 : 3 electrolyte. The reaction of X with excess HCl at room temperature results in the formation of a blue coloured complex Z. The calculated spin only magnetic moment of X and Z is 3.87 B.M., whereas it is zero for complex Y. Among the following options, which statement(s) is/are correct?

Q. The addition of excess aqueous ammonia to a pink coloured aqueous solution of

C o C l_{2} .6 H_{2} O (X)

and

N H_{4} C l

gives an octahedral complex

Y

in the presence of air. In an aqueous solution, complex

Y

behaves as

1 : 3

electrolyte. The reaction of

X

with excess

H C l

at room temperature results in the formation of a blue colored complex

Z

([C o C l_{4}]^{2 -})

. The calculated spin only magnetic moment of

X

and

Z

3.87 BM

whereas, it is zero for complex

Y

.
Choose the correct statement among the following.

Addition of excess aqueous ammonia to a pink coloured aqueous solution of $M C l_{2} . H_{2} O (x) a n d N H_{4} C l$ gives an octahedral complex Y in the presence of air. In aqueous solution, complex Y behaves as 1:3 electrolyte. The reaction of X with excess HCl at room temperature results in the formation of a blue coloured complex Z. The calculated spin only magnetic moment of X and Z is 3.87 B.M., whereas it is zero for complex Y.
Among the following options, which statemet(s) is (are) correct?

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The correct option is D Z is a tetrahedral complex

The correct option is D
Z is a tetrahedral complex