Recent Innovations in Biotechnology — Practice Quiz
CBSE · Class 12 · Biotechnology
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What are biofuels produced from?
Which process is used to produce biodiesel from raw materials?
Which statement best describes the composition advantage of biodiesel over fossil fuels?
How can biodiesel be used in regular diesel engines?
Sample Questions
Which fuels are broad divisions of biofuels?
Show answer
Biodiesel, Bioalcohol, Biogas, Biomass
Biofuels are broadly divided into biodiesel, bioalcohol, biogas and biomass.
What are bioalcohols such as bioethanol produced from?
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Wheat, corn and sugarcane among other sources
Bioalcohols like bioethanol are produced from plant materials such as wheat, corn, sugarcane, molasses, sugar beets, potato and fruit waste.
Which step comes first in bioalcohol production?
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Release of sugars from starch or cellulose
The first step is treatment that releases sugars from stored starch or cellulose, followed by fermentation, distillation and drying.
Up to what percentage of ethanol in petrol is permitted in India?
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10%
India permits oil marketing companies to sell ethanol-blended petrol with ethanol up to 10%.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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