JEE Advanced 2020 Full Test 5 Paper 2

Question : 29 of 54

Marks: +1, -0

A complex is represented as CoCl3⋅xNH3. It's 0.1 molal solutions in water shows ∆Tf=0.558∘.
If the cryoscopic and Ebullioscopic constants for H2O are 1.86 and 0.52 respectively, identify the correct versions assuming 100% ionisation of the complex: