256. Wine contains

1. 1. CH₃OH

   
   
   

   2. C₂H₅OH

   
   
   

   3. C₆H₅OH

   
   
   

   4. Glucose

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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257. Crown ethers are

1. 1. Cyclic ethers

   
   
   

   2. Ethers with several other functional groups

   
   
   

   3. Mixed groups

   
   
   

   4. Not ethers

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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258. In [18] - crown - 6, the number of oxygen atoms is

1. 1. 18

   
   
   

   2. 6

   
   
   

   3. 12

   
   
   

   4. 24

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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259. Octane number of gasoline can be increased by addition of BTX, BTX stands for

1. 1. Butane, tetraethyl lead and xylene

   
   
   

   2. Butane, tetramethyl lead and xylene

   
   
   

   3. Benzene, toluene and xylene

   
   
   

   4. Benzene, tetraethyl lead and xylene

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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260. The flash point in India's is fixed at

1. 1. 44^°C

   
   
   

   2. 35^°C

   
   
   

   3. 22.8^°C

   
   
   

   4. 30^°C

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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