116. Which is the best solvent ?

1. 1. HCHO

   
   
   

   2. CH₃CHO

   
   
   

   3. CH₃COCH₃

   
   
   

   4. CH₃COOH

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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117. Consider the following statements
     1. It is used in welding industry
     2. It is raw material for preparing plastics
     3. It is easily, obtained by mixing silicon carbide and water
     Of these statements

1. 1. 1 and 2 are correct

   
   
   

   2. 1 and 3 are correct

   
   
   

   3. 2 and 3 are correct

   
   
   

   4. 1, 2 and 3 are correct

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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118. General formula for the alkanes is

1. 1. C_nH_2n

   
   
   

   2. C_nH_2n+2

   
   
   

   3. C_nH_2n-2

   
   
   

   4. C_nH_2n+1

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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119. An organic compound contains C = 40%, O = 53.5%,and H = 6.5%, The empirical formula of the compound is

1. 1. CH₂O

   
   
   

   2. C₂H₄O₂

   
   
   

   3. C₂H₄O

   
   
   

   4. C₆H₁₂O₆

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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120. Glucose has how many optical isomers ?

1. 1. 8

   
   
   

   2. 12

   
   
   

   3. 16

   
   
   

   4. Cannot be predicted

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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