Addition of excess aqueous ammonia to a pink coloured aqueous solution of MCl2.H2O(x) and NH4Cl 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?

Addition of excess aqueous ammonia to a pink coloured aqueous solution

1.	Addition of excess aqueous ammonia to a pink coloured aqueous solution of MCl2.H2O(x) and NH4Cl 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?
Answer» 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?