Solutions

Solutions
Class:XII / Unit:2

A solution of two liquids boils at a temperature more than the boiling point of either of them. Hence, the binary solution shows

positive deviation from Raoult's law
no deviation from Raoult's law
negative deviation from Raoult's law
positive or negative deviation from Raoult's law depending upon the compositio

A solution of acetone in ethanol

obeys Raoult's law
shows negative deviation from Raoult's law
shows a positive deviation from Raoult's law
behaves like a near ideal solution

After removing the hard shell of an egg by dissolving in dil. HCl, a semipermeable membrane is visible. If such an egg is kept in a saturated solution of common salt the size of the egg will

grow
shrink
remain the same
first shrink and then grow larger

The mole fraction of the solute in one molal aqueous solution is

0.009
0.018
0.027
0.036

The van't Hoff factor 'i' for K3[Fe(CN)6] is

2
9
10
4

A solution containing components A and B follows Raoult's law, then the:

Attraction force remains same in A - A and B - B
A - B attraction force is greater than A - A and B - B
A- B attraction force is less than A - A and B - B
Volume of solution is different from sum of volume of solute and solvent

Colligative properties and molecular mass of solute are related to each other

Directly
Inversely
Equal
Not related

Which of the following does not show positive deviation from Raoult's Law ?

Benzen-acetone
Benzene-chloroform
Benzene-carbon tetrachloride
Benzene-ethanol

Which one has same Van’t Hoff factor ‘I’ as that of Hg2Cl2

NaCl
Al(NO₃)₃
Al₂(SO₄)₃
Na₂SO₄

Which of the following is incorrect for ideal solutions

∆G_mix = 0
∆H_mix = 0
∆V_mix = 0
∆U_mix = 0