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Q.
Which of the following gives same number of ions as $Al_2(SO_4)_3$?
UP CPMTUP CPMT 2015Solutions
Solution:
The no. of ions present in solution is equal to the van't Hoff factor
$Al_{2}\left(SO_{4}\right)_{3} : 2Al^{3+}+3\left(SO_{4}^{2-}\right) \to 5$ ions
$K_{4}\left[Fe\left(CN\right)_{6}\right]: 4K^{+}+\left[Fe\left(CN\right)_{6}\right]^{4-} \to5$ ions