31. The acidic hydrogen in present in

1. 1. Ethyne

   
   
   

   2. Ethene

   
   
   

   3. Benzene

   
   
   

   4. Ethane

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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32. Which is not a Lewis acid ?

1. 1. H₂O

   
   
   

   2. NH₃

   
   
   

   3. CO₂

   
   
   

   4. BF₃

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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33. pH value of alkaline solution is

1. 1. <7

   
   
   

   2. 7

   
   
   

   3. >7

   
   
   

   4. None

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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34. If a solution of pH = 6 is diluted by 100 times the resulting soluting would be

1. 1. basic

   
   
   

   2. neutral

   
   
   

   3. buffer

   
   
   

   4. acidic

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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35. Water solution base is called

1. 1. Acid

   
   
   

   2. Salt

   
   
   

   3. Alkali

   
   
   

   4. None

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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