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LAKHMIR SINGH & MANJIT KAUR-COMBUSTION AND FLAME-EXERCISES
- Fires in underground coal mines usually occur due to the :
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- The calorific value of a fuel is 40000 kj/kg. This fuel is most likely...
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- Which of the following has the fuels has the highest calorific value ?
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- On a cold winter night, the persons sleeping in a room with closed do...
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- Which of the following burns without producing a flame ?
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- Which of the following fuels has the lowest calorific value ?
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- Which of the following is the main cause of global warming ?
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- Which of the following gas does not contribute to the formation of aci...
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- Which of the following is the most environment friendly fuel to be use...
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- Which of the following does not involve a combustion reaction ?
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- A heap of green leaves is lying in one corner of a park. The green lea...
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- If the colthes of a person working in the kitchen catch fire, then to ...
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- The outermost zone of a candle flame is the :
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- The flame of a kerosene oil lamp (or lantern ) has :
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- A lot of dry powder of one of the following chemicals can be released ...
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- An electric spark is struck between two electrodes placed near each ot...
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- Give reason for the following : paper by itself catches fire easily ...
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- Abida and Ramesh want to heat water taken in separate beakers . Abida ...
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- When a lot of dry powder of a substance X is released over a fire, the...
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- When a lot of dry powder of a substance X is released over a fire, the...
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