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JEE Advanced 2020 Full Test 5 Paper 2

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Question : 29

Total: 54

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:

Hexaammine cobalt (III) chloride is the IUPAC name for the complex
The above solution will boil between 100∘C to 101∘C
The central metal ion is d2sp3 hybridised
The coordination sphere is incapable of exhibiting geometrical isomerism

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