ICSE Class 10 Solutions — Mock Test

Free online mock test for Solutions (ICSE Class 10 Chemistry) — 95 competency-based questions with instant marking. Try the samples below, then take the full test free.

Sample questions

1. 1.200 cm^3 of an aqueous solution of a protein contains 1.26 g of the protein. The osmotic pressure of the solution at 300 K is 2.57 x 10^-3 bar. (R = 0.083 L bar/(mol K)) Calculate the molar mass of the protein.
   • A.30,500 g/mol
   • B.61,022 g/mol
   • C.1,26,000 g/mol
   • D.6,102 g/mol
2. 2.Pressure has practically no effect on the solubility of solids in liquids because solids and liquids are:
   • A.Highly incompressible
   • B.Highly compressible
   • C.Volatile
   • D.Non-polar
3. 3.Calculate the molality of a solution prepared by dissolving 2.5 g of ethanoic acid, CH3COOH (molar mass = 60 g/mol), in 75 g of benzene.
   • A.0.556 mol/kg
   • B.0.042 mol/kg
   • C.0.333 mol/kg
   • D.5.56 mol/kg
4. 4.The mole fraction of ethylene glycol (C2H6O2, molar mass 62 g mol^-1) in a solution containing 20% C2H6O2 by mass is closest to:
   • A.0.068
   • B.0.322
   • C.0.932
   • D.0.200
5. 5.Reverse osmosis is used for desalination of sea water. For this process the pressure applied on the solution side must be:
   • A.Greater than the osmotic pressure of the sea water
   • B.Equal to the osmotic pressure
   • C.Less than the osmotic pressure
   • D.Zero