NTA Abhyas JEE Main2020ChemistryCoordination CompoundsPractice
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 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 c
Options
- AThe hybridization of the central metal ion in Y is d 2 s p 3
- BAddition of solver nitrate to Y gives only two equivalents of silver chloride
- CWhen X and Z are in equilibrium at 0°C, the colour of the solution is pink
- DZ is a tetrahedral complex
Correct answer
B. Addition of solver nitrate to Y gives only two equivalents of silver chloride
Step-by-step solution
X and Z are in equilibrium at 0 o C , equilibrium is shifted towards X, making colour of solution pink.