CBSE Class 8 Answered
Some materials burn with a flame, whereas others burn without a flame. Why?
Asked by polygonpatna | 18 Feb, 2018, 07:38: PM
Expert Answer
All the gaseous fuels burn with a flame but only those solid and liquid fuels which vaporize on heating (to form a gas), burn with a flame.
Those solid and liquid fuels which do not vaporize on heating, burn without producing a flame.
Answered by Ramandeep | 18 Feb, 2018, 08:07: PM
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