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Solutions
True Or False
181.
The correct order of increasing vapour pressure of 0.1 m aqueous solution of glucose, NaCl and magnesium chloride is glucose < NaCl < magnesium chloride.
A.
False
153 Views
182.
Molality is expressed in moles/kg.
A.
False
128 Views
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183.
Molal depression constant depends upon the nature of the solvent.
A.
True
180 Views
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Multiple Choice Questions
184.
Molality is expressed in
Grams/litre
Litres / moles
Moles/litre
Moles / kg
183 Views
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185.
Which of the following liquid pairs will show positive deviation from Raoult’s law?
water-hydrochloric acid
water-nitric acid
acetone chloroform
Benzene-methanol.
350 Views
186.
Increasing the temperature of an aqueous solution will cause.
decrease in molarity
decrease in molality
decrease in mole fraction
decrease in % (w / W)
142 Views
187.
When mango is placed in aqueous solution of hydrochloric acid, it
Shrinks
Swells
Bursts
Nothing happens
173 Views
188.
Which of the following does not show positive deviation from Raoult’s low?
Benzene-chlorofrom
Benzene-acetone
Benzene-ethanol
Benzene-carbon tetrachloride
243 Views
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189.
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.
236 Views
190.
Van’t Hoff factor for an electrolyte is
> 1
< 1
= 1
none of the above
154 Views
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