Question
Download Solution PDFWhich of the following are biofuels?
A. Gasoline
B. Methanol
C. Methane
D. Ethanol
Choose the correct answer from the options given below:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFBiofuels are fuels that are derived from renewable biological sources such as crops, plant matter, and animal waste.
Key Points
- Biofuels are considered to be a cleaner alternative to fossil fuels because they produce fewer greenhouse gases when burned.
- Gasoline and methane are not biofuels as they are derived from non-renewable sources such as crude oil and natural gas, respectively.
- Methanol and ethanol are considered to be biofuels as they can be produced from renewable sources such as sugarcane, corn, and switchgrass.
- Methanol is produced from the gasification of biomass or the distillation of wood, while ethanol is typically produced by fermenting crops such as corn or sugarcane.
Therefore, the correct options are B and D.
Last updated on Jun 12, 2025
-> The UGC NET June 2025 exam will be conducted from 25th to 29th June 2025.
-> The UGC-NET exam takes place for 85 subjects, to determine the eligibility for 'Junior Research Fellowship’ and ‘Assistant Professor’ posts, as well as for PhD. admissions.
-> The exam is conducted bi-annually - in June and December cycles.
-> The exam comprises two papers - Paper I and Paper II. Paper I consists of 50 questions and Paper II consists of 100 questions.
-> The candidates who are preparing for the exam can check the UGC NET Previous Year Papers and UGC NET Test Series to boost their preparations.