Question

Which of the following happen when a wax candle is burnt

• A. (i) and (ii) only
• B. (ii) and (iii) only
• C. (iii) and (i) only
• D. (i), (ii) and (iii)

Answer 1

The correct option is D (i), (ii) and (iii)

Wax is made up of carbon and hydrogen. When a candle burns the hydrogen and carbon from the wax combine with the oxygen in the air to become carbon dioxide and water vapor most of the matter from the candle ends up in the form of gases.

Hence the correct option is $A$.