Question

The substance that does not burn with flame is

• A. LPG
• B. camphor
• C. dry grass
• D. charcoal

Answer 1

The correct option is D

charcoal

Explanation of the correct answer:

(D) -charcoal

• No flame is created while using charcoal as it does not vaporize. As a result, it doesn't ignite.
• Largely pure carbon makes up charcoal. As a result, it nevertheless has the same chemical formula as carbon, which is $\mathrm{C}$
• It has a dark colour and may be used to start fires.
• Charcoal is a solid fuel that does not vaporize on heating.

Explanation of the incorrect answers:

(A) - LPG

LPG (Propane) gas flame that has fully combusted is blue in color and burns at a temperature of around 1,980°C.

(B) -Camphor

Camphor which vaporizes on the heating burn with a flame.

(C) - dry grass

Dry grass burns with flame.

Hence option (D) is the correct answer.