Tag: biofuels

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Questions Related to biofuels

Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Which one contains hydrocarbons similar to those of petroleum?

  1. Tannin

  2. Starch

  3. Latex

  4. Resin
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Latex, particularly from plants like Hevea brasiliensis and certain members of Euphorbiaceae and Asclepiadaceae, contains complex hydrocarbon chains similar to petroleum hydrocarbons, which has sparked interest in petrocrops.

Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Which one is being tried in India as biofuel substitute for fossil fuels?

  1. <p>Jatropha</p>

  2. <p>Musa</p>

  3. <p>Aegilops</p>

  4. <p>Azadirachta</p>
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Biofuels are the substances which are of biological origin and can be used as a source of energy. Jatropha has been used as a biofuel in India. The seeds of Jatropha contain an inedible oil which can be converted to biodiesel. The seed cake (residue left extraction of oil from seeds) can be used as fertilizer or food for cattle. The biodiesel of Jatropha oil emits 80% less carbon dioxide on burning than other fuels. So, the correct answer is 'Jatropha'.

Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

A bad firewood is that of

  1. <p>Dalbergia</p>

  2. <p>Bauhinia</p>

  3. <p>Lagersroemia</p>

  4. <p>Terminalia</p>
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Dalbergia (such as Dalbergia sissoo) is highly valued for its timber and is generally considered a premium wood rather than a bad firewood. However, in the context of specific biology curricula, it is often cited as poor fuel compared to others due to its high value as timber.

Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Which of the following is the most important conventional natural source of energy?

  1. Atomic energy

  2. Biogas

  3. Sunlight

  4. Fossil fuels
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Conventional source of energy is a type of source which is limited in nature like coal, gas, fuel, minerals etc. they take millions of years to replenish. 

So, the correct answer is 'Fossil fuels'

Multiple choice commercial applications bioenergy biofuels making biofuels technological and industrial development

Which of the following is the way to control vehicular air-pollution in Indian cities ?

  1. Use of CNG as fuel

  2. Use of unleaded petrol in the vehicles

  3. Use of catalytic converter in the vehicles

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

  1.  CNG produces 45% fewer hydrocarbons than gasoline.
  2. Unleaded petrol doesn't produce lead in the atmosphere.
  3. Catalytic converter reduces emissions of three harmful compounds found in car exhaust which are
  • Carbon monoxide (a poisonous gas)
  •  Nitrogen oxides (a cause of smog and acid rain) 
  • Hydrocarbons (a cause of smog)
  • So, the correct option is 'All of these'.