JEE Previous Year Question

The elevation of boiling point of $0.10m$ aqueous ${\text{CrCl}}_3\cdot {\text{xNH}}_3$ solution is two times that of $0.05m$aqueous ${\text{CaCl}}_2$solution. The value of $x$ is [Assume$100\text{\%}$ ionisation of the complex and ${\text{CaCl}}_2$, coordination number of $\text{Cr}$ as $6$, and that all ${\text{NH}}_3$ molecules are present inside thecoordination sphere]

Topic: JEE PYQ

Answer: 5. Full step-by-step solution below.