Question

Every substance that burns produces flames.

• A. True
• B. False

Answer 1

The correct option is B

False

Substances produce flames while burning, only if it vapourises during the process.
For example, molten wax rises through the wick and is vapourised during burning. So, they form flames.
Charcoal, on the other hand, does not vaporise. So, it does not produce any flame.
Hence, the above statement is false.