Question

The substances, which vapourise during burning, gives flame. (True or False). Also write the false statements in their correct form.

• A. True
• B. False

Answer 1

The correct option is A True

• The substances, which vapourize during burning, give flame. These substances are called inflammable substances.
• Hence the given statement is true.
• A hot, glowing body of ignited gas that is generated by something on fire is called Flame. Kerosene oil and molten wax are substances that give a flame while burning. Wood and charcoal are substances that do not vaporize, but still burn, without any flame.
• Kerosene oil and molten wax rise through the wick and are vaporized during burning and form flames.
• Charcoal, on the other hand, does not vapourize and so does not produce a flame.
• The vapors of wax coming out of the glass tube could be the cause of the flame produced.