INSIGHT UPSC QUIZ

Science & Technology General Science
Q.

Consider the following statements about the ‘properties of ethanol’: 

1. Ethanol is insoluble in water. 

2. Consumption of small quantities of dilute ethanol causes drunkenness. 

3. Ethanol can be blended with diesel.

4. Ethanol is used as a solvent in many medicines.

Which of the statements given above are correct?

Explanation:

ANSWER: (B)

Properties of Ethanol 

  • Ethanol is a liquid at room temperature.
  • Ethanol is also soluble in water in all proportions. (Thus, Statement 1 is not correct)
  • Consumption of small quantities of dilute ethanol causes drunkenness. (Thus, Statement 2 is correct)
  • Ethanol is commonly called alcohol and is the active ingredient of all alcoholic drinks. 
  • National Biofuel Policy-2018 envisages an indicative target of 20% blending of ethanol in petrol (10% by 2022) and 5% blending of biodiesel in diesel in the whole country by 2030. (Thus, Statement 3 is correct)
  • In addition, because it is a good solvent, it is also used in medicines such as tincture iodine, cough syrups, and many tonics. (Thus, Statement 4 is correct)

 

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