1. A solution contains 1 mole alcohol and 4 mole water. The mole fraction of water and alcohal will be

1. 1. 1/4 and 4/1

   
   
   

   2. 4/1 and 1/4

   
   
   

   3. 1/5 and 4/5

   
   
   

   4. 4/5 and 1/5

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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2. The plant cell will shrink when placed in

1. 1. Water

   
   
   

   2. Hypotonic solution

   
   
   

   3. Hypertonic solution

   
   
   

   4. An isotonic solution

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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3. The most convenient was of expressing concentration is

1. 1. Normality

   
   
   

   2. Molarity

   
   
   

   3. Molality

   
   
   

   4. Mole fraction

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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4. Blood has been found isotonic with

1. 1. saturated solution of NaCI

   
   
   

   2. saturated solution of KCI

   
   
   

   3. saturated solution of 1.1 mixture of NaCI and KCI

   
   
   

   4. normal sodium chloride solution

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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5. A 500 gm tooth paste sample has 0.2 gram fluoride concentration. What is the concentration of fluoride ion in terms of ppm level

1. 1. 250

   
   
   

   2. 200

   
   
   

   3. 400

   
   
   

   4. 1000

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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