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 ofair. 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 followingoptions, which statement is incorrect ?

Addition of excess aqueous ammonia to a pink coloured aqueous solution

1.	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 ofair. 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 followingoptions, which statement is incorrect ?
Answer» The hybridization of the central metal ION in Y is `d^(2)sp^(3)` Addition of silver NITRATE to Y gives only TWO equivalents of silver chloride When X and Z are in EQUILIBRIUM at `0^(@)C`, the colour of the solution is pink Z is a tetrahedral complex Answer :B