41. The bleeding of a wound is stopped by the application of ferric chloride because

1. 1. blood stars flowing in the opposite direction

   
   
   

   2. ferric chloride seals the blood vessels

   
   
   

   3. blood reacts and a solid is formed which seals the blood vessels

   
   
   

   4. blood is coagulated and the blood vessels are sealed

   
   
   

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   NA

   Correct Option: D

   NA

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42. In which of the following Tyndall effect is not observed ?

1. 1. Gold sol

   
   
   

   2. Sugar solution

   
   
   

   3. Emulsions

   
   
   

   4. Suspension

   
   
   

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   NA

   Correct Option: B

   NA

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43. Adsorption due to strong chemical forces is called

1. 1. Physiosorption

   
   
   

   2. Chemisorption

   
   
   

   3. Reversible adsorption

   
   
   

   4. Both (a) and (c)

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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44. Which factor effects adsorption ?

1. 1. Temperature

   
   
   

   2. Surface area

   
   
   

   3. Pressure

   
   
   

   4. All of these

   
   
   

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   NA

   Correct Option: D

   NA

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45. The extent of adsorption of a gas, on a solid depends upon

1. 1. nature of gas

   
   
   

   2. temperature of gas

   
   
   

   3. pressure of gas

   
   
   

   4. all of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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