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AGRAWAL EXAM CART BIHAR-FOSSIL FUELS (COAL AND PETROLEUM & ITS REFINING ), ITS COMBUSION AND FLAME-IMPORTANT QUESTIONS
- Which is a solid fuel ?
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- In the sun, heat and light are produced by
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- The head of a safety matchstick contains
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- When the matchstick is struck against rubbing surface, red phosphorous...
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- Bestextinguisher for inflammable matals is:
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- CO2 is given off by chemicals like :
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- Coal is ........... in nature:
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- Coal mainly contains:
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- Carbonisation is:
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- Coal is processed in industry to get :
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- Coke is used in the manufacturing of:
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- Which is an almost pure form of carbon
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- Coal tar is used in manufacture of:
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- Naphthalene balls are obtained from:
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- Name the resources that is found nature and can be used by people :
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- Air is an example of:
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- Name the resources present in unlimited quantity in nature :
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- Name the resources present in limited quantity in nature :
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- Name the resources exhausted by human activities :
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- Name the fossil fuel which is hard solid and black in colour :
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