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Which of the following salt has the same...

Which of the following salt has the same value of van't Hoff factor as that of `K_3 [Fe(CN)_6]`?

A

`Na_2SO_4`

B

`Al(NO_3)3`

C

`Al_2(SO_4)3`

D

`Fe_3O_4`

Text Solution

Verified by Experts

The correct Answer is:
B
`K_3[Fe(CN)_6]` on ionisation gives 4 species `(3 K^+ and 1 [Fe(CN)_6]^(3-)) and AI(NO_3)_3` also gives 4 species `(1 Al^(3+) and 3 NO_3^-` ), thus, both will have the same value of van.t Hoff factor.
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