Consider 1 M solutions of the following salts. State which solution will have the lowest freezing point.
A
Na2SO4
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B
BaCl2
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C
NaCl
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D
Al2(SO4)3
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Solution
The correct option is DAl2(SO4)3 As we know, more no of ions → more depression in freezing point and Al2(SO4)3 gives 5 ions in solution so it will the have lowest freezing point.