Which one is the right option:

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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.

False

153 Views

182. Molality is expressed in moles/kg.

False

128 Views

183. Molal depression constant depends upon the nature of the solvent.

True

180 Views

Multiple Choice Questions

184. Molality is expressed in

Grams/litre
Litres / moles
Moles/litre
Moles / kg

183 Views

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

Swells

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

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