MEDIUM
12th ICSE
IMPORTANT
Earn 100

Why do we sometimes get abnormal molecular masses of substances? Give the modified equations for the colligative properties for substances exhibiting abnormal molecular masses.

Important Questions on Solutions

MEDIUM
12th ICSE
IMPORTANT
ICSE Chemistry>Chapter 2 - Solutions>SHORT ANSWER TYPE QUESTIONS>Q 54
Define the term van't Hoff factor? How is van't Hoff factor related to degree of dissociation?
MEDIUM
12th ICSE
IMPORTANT
ICSE Chemistry>Chapter 2 - Solutions>SHORT ANSWER TYPE QUESTIONS>Q 55
Define degree of dissociation. A substance dissociates in solution to give n ions. Derive an expression for degree of dissociation in terms of van't Hoff factor i and n.
MEDIUM
12th ICSE
IMPORTANT
ICSE Chemistry>Chapter 2 - Solutions>SHORT ANSWER TYPE QUESTIONS>Q 56
The mole fraction of a solute in a solution is 0.1 At 298 K, molarity of this solution is the same as its molality.  Density of this solution at 298 K is 2.0 g cm-3 . The ratio of the molecular weights of the solute and solvent MWsolute MWsolvent  is?
MEDIUM
12th ICSE
IMPORTANT
ICSE Chemistry>Chapter 2 - Solutions>ESSAY (LONG ANSWER) TYPE QUESTIONS>Q 1
Explain the terms solute, solvent and solution. Describe various types of solutions and mention the cause of solubility in each case.
MEDIUM
12th ICSE
IMPORTANT
ICSE Chemistry>Chapter 2 - Solutions>ESSAY (LONG ANSWER) TYPE QUESTIONS>Q 2
Mention briefly the various units used to represent the composition of a solution. Also mention the effect of temperature on each of them.
MEDIUM
12th ICSE
IMPORTANT
ICSE Chemistry>Chapter 2 - Solutions>ESSAY (LONG ANSWER) TYPE QUESTIONS>Q 3
Define vapour pressure. On what factors does the vapour pressure of a liquid depend? Why does the vapour pressure of a liquid get lowered when a non-volatile solute is dissolved in it?
MEDIUM
12th ICSE
IMPORTANT
ICSE Chemistry>Chapter 2 - Solutions>ESSAY (LONG ANSWER) TYPE QUESTIONS>Q 4
State and explain Raoult's law. Show graphically the variation of total vapour pressure over a mixture of two volatile liquids with the composition of the mixture.
 
MEDIUM
12th ICSE
IMPORTANT
ICSE Chemistry>Chapter 2 - Solutions>ESSAY (LONG ANSWER) TYPE QUESTIONS>Q 5
State and explain Raoult's law for solutions containing volatile liquids.