The correct relationship between the boiling | vedclass

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(B) The boiling point elevation is a colligative property,which depends on the van't Hoff factor $(i)$.For $AlCl_3$,the dissociation is $AlCl_3 \right

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$t_1 > t_2$

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(B) The boiling point elevation is a colligative property,which depends on the van't Hoff factor $(i)$.For $AlCl_3$,the dissociation is $AlCl_3 ightarrow Al^{3+} + 3Cl^-$,so $i = 4$.For $CaCl_2$,the dissociation is $CaCl_2 ightarrow Ca^{2+} + 2Cl^-$,so $i = 3$.Since the molar concentration is the same,the boiling point elevation $\Delta T_b = i 	imes K_b 	imes m$ is directly proportional to $i$.Because $i$ for $AlCl_3$ $(4)$ is greater than $i$ for $CaCl_2$ $(3)$,the boiling point $t_1$ of $AlCl_3$ will be greater than $t_2$ of $CaCl_2$,i.e.,$t_1 > t_2$.

The correct relationship between the boiling points of very dilute solutions of $AlCl_3$ $(t_1)$ and $CaCl_2$ $(t_2)$,having the same molar concentration is

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