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Which of the following does not show positive deviation from Raoult’s low?
Benzene-chlorofrom
Benzene-acetone
Benzene-ethanol
Benzene-carbon tetrachloride
A.
Benzene-chlorofrom
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Van’t Hoff factor for an electrolyte is
> 1
< 1
= 1
none of the above
Which of the following compounds corresponds vant’t Hoff factor
to be equal to 2
for dilute solution?
K
2
SO
4
Na
2
SO
4
Sugar
MgSO
4
Depression in freezing point is directly proportional to
mole fraction of the solution
molarity of the solution
molality of the solution.
molality of the solvent.
When mango is placed in aqueous solution of hydrochloric acid, it
Shrinks
Swells
Bursts
Nothing happens
First
7
8
9
Last
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