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.
- ABoth (A) and (R) are individually true and R is the correct explanation of A
- BBoth (A) and (R) are individually true and R is not the correct explanation of A
- CA is true but R is false
- 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.
Related questions
More UPSC Prelims practice from the same subject and topic.
- Prelims 2005GS1science-and-technology
Ten identical particles are moving randomly inside a closed box. What is the probability that at any given point of time all the ten particles will be lying in the same half of the box?
- Prelims 2005GS1science-and-technology
Consider the following statements: 1. During the process of osmosis, the solvent travels from the concentrated solution to the dilute solution.
- Prelims 2005GS1science-and-technology
Assertion (A): All the proteins in our food are digested in small intestine only. Reason (R): The Protein digesting enzymes from pancreas are released into small intestine.
- Prelims 2005GS1science-and-technology
Assertion (A): Amoeba is reproduced by fission. Reason (R): All unicellular organisms are reproduced by asexual methods.
- Prelims 2005GS1science-and-technology
Assertion (A): The person with diabetes insipidus feels thirsty. Reason (R): A person with diabetes insipidus suffers from excess secretion of vasopressin.
- Prelims 2005GS1science-and-technology
Consider the following statements: 1. Dengue is a protozoan disease transmitted by mosquitoes. 2. Retro-orbital pain is not a symptom of Dengue. 3. Skin rash and bleeding from nose and gums are some o…