MEDIUM
12th West Bengal Board
IMPORTANT
Earn 100

Why does molality of a solution remains unchanged with change in temperature while its molarity changes?

Important Questions on Solutions

MEDIUM
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 2 - Solutions>REVIEW EXERCISES>Q 17
Why is the cooking temperature in pressure cooker higher than that in the open pan?
MEDIUM
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 2 - Solutions>REVIEW EXERCISES>Q 18
Solution A is obtained by dissolving 1 g of urea in 100 g of water and solution B is obtained by dissolving 1 g of glucose in 100 g of water. Which solution will have a higher boiling point and why?
EASY
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 2 - Solutions>REVIEW EXERCISES>Q 19
On mixing equal volumes of water and ethanol, what type of deviation would you expect from Raoult's law?
EASY
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 2 - Solutions>REVIEW EXERCISES>Q 20
When is the value of van't Hoff factor more than one?
HARD
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 2 - Solutions>REVIEW EXERCISES>Q 21
Give one example each when Van't Hoff's factor is 2 and 12?
EASY
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 2 - Solutions>REVIEW EXERCISES>Q 22

How is that the boiling point of the following solutions in water are different:

i) 0.1 M NaCl solution      ii) 0.1 M sugar solution?

HARD
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 2 - Solutions>REVIEW EXERCISES>Q 23
Mention a large scale use of the phenomena of reverse osmosis.
HARD
12th West Bengal Board
IMPORTANT
NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 2 - Solutions>REVIEW EXERCISES>Q 24
What is the sum of mole fractions of all the components in a three component system?