UPSC Prelims 2005·GS1·science-and-technology·science and technology

Assertion (A): The main constituent of the Liquefied Petroleum Gas is methane. Reason (R): Methane can be used directly for burning in homes and factories where it can be supplied through pipelines.

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  1. ABoth (A) and (R) are individually true and R is the correct explanation of A
  2. BBoth (A) and (R) are individually true and R is not the correct explanation of A
  3. CA is true but R is false
  4. DA is false but R is trueCorrect

Explanation

The correct answer is D because the Assertion is false while the Reason is true. Assertion A is false because the main constituents of Liquefied Petroleum Gas or LPG are propane and butane, not methane. Methane is the primary component of Natural Gas and Compressed Natural Gas or CNG. Reason R is true because methane, as the main component of Piped Natural Gas or PNG, can be transported through pipelines and used directly as a fuel for heating and cooking in domestic and industrial settings. Since the first statement is incorrect and the second is a factual statement about methane, option D is the correct choice.
science-and-technology: Assertion (A): The main constituent of the Liquefied Petroleum Gas is methane. Reason (R): Methane can be used directly

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