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NCERT EXEMPLAR-COMBUSTION AND FLAME -SHORT ANSWER QUESTIONS (Write True/False against the following statements and also correct the false statement.)
- A physical process in which a substance reacts with oxygen to give off...
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- Water is the best extinguisher for fires involving electrical equipmen...
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- Alcohol, CNG and LPG are inflammable substances.
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- Increased concentration of nitrogen in air is believed to cause global...
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- Greater the calorific value, better is the fuel.
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- Middle zone is the hottest zone of a flame.
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- The substances which vapourise during burning, give ..........
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