Is chapter solutions important .??? For …

Yes , the chapter 2 / solutions is quite important from  cbse class 12 examination point of view , and hence must not be ignored . Short answer type -1 questions (1 mark ) and Short  answer type -2 questions ( 2 -3 marks ) along with the numericals  usually appear in the chemistry question paper.

The topics or different units should be well understood  before attempting the given intext questions  as well as the exercises . The following must be learnt well ,     

1. molarity , molality  and mole fraction .

2.   Henry's law and   its expression as a fomula , applications of  Henry's law .

3 Raoult's law  and related formulae  for liquid -liquid solutions , and  solutions containing nonvolatile solutes.

4.  Colligative properties , ideal and nonideal solutions  &  deviations of nonideal solution wit respect to ideal solution .

5.  Osmosis and osmotic pressure .

6. Application of formulae  ( viz  {tex}\Delta{/tex}.T_b  ,{tex}\Delta{/tex}T_f ,{tex}\pi{/tex} ( Osmotic pressure )  and  i (vant Hoff's factor ) and also reverse osmosis.

Further , it is a regular and  constant practice or revision   which  makes us perfect in any topic. So,  work out all the questions  patiently . Wish you all the best .