List of top Chemistry Questions on Solutions asked in UP Board XII

(i) What do you understand by velocity of a chemical reaction?
(ii) Explain Raoult’s law.

The concentration of the solution of glucose in water is 10% (w/w). If the density of this solution is 1.20 g mL$^{-1}$, then calculate – 
(i) Molality 
(ii) Molarity 
(iii) Mole fraction of each component in solution 
 

On dissolution of 2.0 g of a non-electrolyte in 50.0 g benzene, its freezing point decreases by 0.40 K. The freezing point depression constant of benzene is 5.12 K kg mol$^{-1}$. Calculate the molar mass of the solute.
Which of 0.1 M urea and 0.1 M NaCl will have more osmotic pressure? Explain with reason.
Calculate the osmotic pressure of 5% aqueous urea solution (w/v) at 27$^\circ$C. Molecular weight of urea = 60. (R = 0.0821 L atm K$^{-1}$ mol$^{-1}$)
State anti-osmosis with example.
Define Osmotic pressure. How will you show that Osmotic pressure is a colligative property?
The concentration unit independent of temperature is:
Molarity of pure water is:
Explain osmotic pressure of solution. Establish a relationship between osmotic pressure of solution and molar mass of solute.
Calculate the mole fraction of glycerol in 30% by weight of aqueous glycerol (C$_3$H$_8$O$_3$) solution.
What do you understand by osmosis and osmotic pressure? 1.26 g protein is present in 200 cm\(^3\) aqueous solution of protein. Molar mass of protein is 61,022 g mol\(^{-1}\). What will be osmotic pressure of this solution at 300 K?
In a 200 g solution of glucose with 10% mass per cent, amount of glucose will be:
What do you understand by elevation in boiling point? Boiling point of a liquid is 350 K. On dissolving 2.0 g of a non-volatile solute in 100 g liquid, the boiling point of solution becomes 350.50 K. Calculate the molar mass of the solute. \( K_b \) for the liquid is 2.50 K kg mol\(^{-1}\).
3.0 g of acetic acid is dissolved in 80 g of benzene. The molality of the solution is