Question

Q 6. The freezing point of 0.1M NaCl sol. Is
than that of 0.1M MgCl2 sol.
(1M)
(a) Less than
(b) more than
(c) equal to
(d) none of the above​

Answer 1

Answer:

Solutions - ncert

more components present in the solution other than solvent are called ... At this concentration the antifreeze lowers the freezing point of.

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Answer 2

The freezing point of 0.1M NaCl sol. is more than that of 0.1M MgCl2 sol.

• NaCl breaks down into Na⁺ and Cl⁻ when in aqueous solution and the total concentration of ions become 0.1M+ 0.1M = 0.2M
• When MgCl₂ is in aqueous solution, it breaks down into Mg²⁺ and 2Cl⁻, therefore the total concentration becomes 0.1M +0.2M = 0.3M
• Since the concentration of MgCl₂ is more in aqueous solution than NaCl therefore its freezing point will also be greater than NaCl.