21. Isotonic solutions have the same

1. 1. Density

   
   
   

   2. Molar concentration

   
   
   

   3. Normality

   
   
   

   4. Strength

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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22. Semipermeable membrane is that which permits the passage of

1. 1. solute molecules only

   
   
   

   2. solvent molecules only

   
   
   

   3. solvent and solute molecules both

   
   
   

   4. neither solute nor solvent molecules

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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23. Which inorganic precipitate acts as semipermeable membrane ?

1. 1. Calcium sulphate

   
   
   

   2. Barium oxalate

   
   
   

   3. Nickel phosphate

   
   
   

   4. Copper ferrocyonide

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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24. To prepare a standard solution of a substance, which of the following is generally used ?

1. 1. A burette

   
   
   

   2. Small cylinder

   
   
   

   3. Measuring flask

   
   
   

   4. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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25. In which mode of expression, the concentration of the solution remain independent of temperature ?

1. 1. Normality

   
   
   

   2. Molality

   
   
   

   3. Molarity

   
   
   

   4. Formality

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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