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Question
Chemistry
The aqueous solution that has the lowest vapour pressure at a given temperature is
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Q. The aqueous solution that has the lowest vapour pressure at a given temperature is
Solutions
A
0.1 molal sodium phosphate
B
0.1 molal barium chloride
C
0.1 molal sodium chloride
D
0.1 molal glucose
Solution:
$0.1 \,m \,Na _{3} PO _{4}=0.4 \,m$ particles which is maximum.
So, lowering of vapour pressure will be maximum.