Question

which of the following is a solid fuel that can produce flame on heating and burning? a) wax b) charcoal c) coal d)none of these​

Answer 1

Answer:

option c

Explanation:

because when ever coal is burnt it can produce flame

Answer 2

Answer:

a) Wax

Explanation:

• Wax is the substance which vaporizes during heating and burning thereby giving flame.
• Charcoal is a solid fuel which does not vaporise on heating. So, charcoal does not produce burn by producing a flame.
• Coal is also a solid fuel which does not vaporise on heating. So, coal does not produce burn by producing a flame. Coal just glow red on combustion.