We have three aqueous solutions of NaCl labelled as A, B and C with concentration `0.1 M , 0.01 "and" 0.001` M , respectively . The value of van't Hoff factor for these solutions will be in the order :

Options

A. `i_(A)lti_(B)lti_(C)`
B. `i_(A)gti_(B)gti_(C)`
C. `i_(A)=i_(B)=i_(C)`
D. `i_(A)lti_(B)gti_(C)`

Answer

A

Explanation

Van’t Hoff’s factor i depends on the degree of dissociation `(alpha)` and the value of `alpha` increases with the increase of dilution of an electrolyte solution
So `alpha_(A)ltalpha_(B)ltalpha_(C)`
or `i_(A)lti_(B)lti_(C)`.