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प्रश्न
Fossil fuels are obtained from
विकल्प
remains of non-living materials
dead remains of birds only
dead remains of insects only
dead remains of living organisms
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उत्तर
dead remains of living organisms
Explanation:
Fossil fuels are obtained from the remains of living organisms (plants and animals) buried under the earth millions of years ago.
Notes
Coal, petroleum and natural gas are fossil fuels.
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संबंधित प्रश्न
Choose the correct alternative.
In combined state, carbon occurs as
FILL IN THE BLANK
.................. are the compounds of hydrogen and carbon only.
Name a gas which, though a compound of carbon, is not studied under organic chemistry.
Name of the following compounds :
State how you would convert carbon dioxide to a metallic carbonate using a basic oxide e.g. sodium oxide. [Give a balanced equation]
Compounds with same molecular formula and different structural formula are known as ______.
Higher Order Thinking Skill.
Why do carbon exist mostly in combined state?
The portion left on dropping a hydrogen atom from an alkane is called ______.
Which of the following is highly toxic?
There is more abundance of carbon on the earth.
