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Addition of excess aqueous ammonia to a ...

Addition of excess aqueous ammonia to a pink coloured aqueous solution of `MCl_(2). 6H_(2)O (X)` and `NH_(4)Cl` 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.,` whersas it is zero for complex Y.
Among the following options, which statement (s) is (are) correct ?

A

The hybridisation of the central metal ion in Y is `d^(2) sp^(3)`

B

Addition of silver nitrate to Y given only two equivalents os silver chloride

C

When X and Y are in equilibrium at `0^(@)C`, the colour of the solution is pink

D

Z is a tetrahedral complex

Text Solution

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The correct Answer is:
A, B, D
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Addition of excess aqueous ammonia to a pink coloured aqueous solution of MCl_(2). 6H_(2)O(X) and NH_(4)Cl 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 is incorrect ?

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Knowledge Check

  • Addition of excess aqueous ammonia to a pink coloured aqueous solution of MCl_(2). 6H_(2)O(X) and NH_(4)Cl 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 is incorrect ?

    A
    The hybridization of the central metal ion in Y is `d^(2)sp^(3)`
    B
    Addition of silver nitrate to Y gives only two equivalents of silver chloride
    C
    When X and Z are in equilibrium at `0^(@)C`, the colour of the solution is pink
    D
    Z is a tetrahedral complex

  • Addition of excess aqueous ammonia to a pink coloured aqueous solution of MCl_(2).6H_(2)O (X) and NH_(4)Cl gives an octahedral complex Y in the pressure 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 compelx 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 ?

    A
    The hybridization of the central metal ion in Y id `d^(2)sp^(3)`
    B
    Addition of silver nitrate to Y gives only two equivalents of silver chloride
    C
    When X and Z are in equilbrium at `0^(@)C`, the coloured of the solution is pink
    D
    Z is a tetrahedral complex

  • Addition of excess aqueous ammonia to a pink coloured aqueous solution of MCl_(2).6H_(2)O(X) and NH_(4)Cl 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 excss 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 BM, whereas it is zero of complex Y. Among the following options, which statement(s) is (are) correct ?

    A
    The hybridization of the central metal ion in Y is `d^(2)sp^(3)`
    B
    Addition of silver nitrate of Y gives only tow equivalents of silver chloride
    C
    When X and Z in equilibrium at `0^(@)C`, the colour of the solution is pink
    D
    Z is a tetrahedral complex.