Q3 of 34 Page 90

A candle consists of unburnt wax vapours. Which zone is this?

The unburnt wax vapours of a burning candle constitutes the innermost zone of the flame which is least hot.


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1

If the supply of oxygen is not sufficient, will the fuels burn completely?

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LPG stoves burn with which colour of flame? Why?

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Fuels can be in solid or liquid state only. Is it correct?

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Write the unit of calorific value.