Respuesta :
Answer : The correct option is, (A) [tex]AlCl_3[/tex]
Explanation :
Van't Hoff factor : It is defined as the ratio of the experimental value of the colligative property to the calculated value of the colligative property.
We can determine the van't Hoff factor by the association and dissociation of the compound.
(A) [tex]AlCl_3[/tex]
It is an electrolyte that dissociates to give aluminum ion and chloride ion.
The dissociation of [tex]AlCl_3[/tex] will be,
[tex]AlCl_3\rightarrow Al^{3+}+3Cl^{-}[/tex]
So, Van't Hoff factor = Number of solute particles = [tex]Al^{3+}+3Cl^{-}[/tex] = 1 + 3 = 4
(B) [tex]KI[/tex]
It is an electrolyte that dissociates to give potassium ion and iodide ion.
The dissociation of [tex]KI[/tex] will be,
[tex]KI\rightarrow K^{+}+I^{-}[/tex]
So, Van't Hoff factor = Number of solute particles = [tex]K^{+}+I^{-}[/tex] = 1 + 1 = 2
(C) [tex]CaCl_2[/tex]
It is an electrolyte that dissociates to give calcium ion and chloride ion.
The dissociation of [tex]CaCl_2[/tex] will be,
[tex]CaCl_2\rightarrow Ca^{2+}+2Cl^{-}[/tex]
So, Van't Hoff factor = Number of solute particles = [tex]Ca^{2+}+2Cl^{-}[/tex] = 1 + 2 = 3
(D) [tex]MgSO_4[/tex]
It is an electrolyte that dissociates to give magnesium ion and sulfate ion.
The dissociation of [tex]MgSO_4[/tex] will be,
[tex]MgSO_4\rightarrow Mg^{2+}+SO_4^{2-}[/tex]
So, Van't Hoff factor = Number of solute particles = [tex]Mg^{2+}+SO_4^{2-}[/tex] = 1 + 1 = 2
(E) Non-electrolyte
The dissociation non-electrolyte is not possible. So, the Van't Hoff factor will always be, 1.
Hence, the highest van't Hoff factor of solute is, [tex]AlCl_3[/tex]
Van't Hoff factor: It is defined as the ratio of the experimental value of the colligative property to the calculated value of the colligative property.
The correct answer is A) [tex]ALCL_3[/tex]
The van't hoff factor is decided by the number of ions present in the compound.
In option A there are 4 ions that are [tex]AL^3+ and \ CL^-[/tex].
According to the concept, the ions for other options are 4, 1, 3, and, 1 respectively.
The correct option is A.
For more information, refer to the link:-
https://brainly.com/question/22810476
