Question:
The elevation of boiling point of $0.10 \mathrm{~m}$ aqueous $\mathrm{CrCl}_{3} \cdot \mathrm{xNH}_{3}$ solution is two times that of $0.05 \mathrm{~m}$ aqueous $\mathrm{CaCl}_{2}$ solution. The value of $x$ is
[Assume $100 \%$ ionisation of the complex and $\mathrm{CaCl}_{2}$, coordination number of $\mathrm{Cr}$ as 6 , and that all $\mathrm{NH}_{3}$ molecules are present inside the coordination sphere]
Solution:
Official Ans. by NTA (5.00)