Question

Addition of excess aqueous ammonia to a pink coloured aqueous solution of MCl₂.6H₂O(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 statement(s) is(are) correct?
[A] The hybridization of the central metal ion in Y is d² sp³
[B] Z is a tetrahedral complex
[C] Addition of silver nitrate to Y gives only two equivalents of silver chloride
[D] When X and Z are in equilibrium at 0⁰C, the colour of the solution is pink

Answer 1

Answer:

The option is A I think soo...............