Question

Write T for true and F for false statements.

The burning of sugar is a temporary change.

• A. True
• B. False

Answer 1

The correct option is B False

1. The burning of sugar is a permanent chemical change.
2. A change in which the chemical composition of a substance changes and a new substance is formed is known as chemical change. For example, curdling of milk, and rusting of iron.
3. The burning of sugar leads to a reaction of sugar with oxygen in the air and leads to the formation of carbon dioxide and water.

$\underset{\mathrm{Glucose}}{{\mathrm{C}}_6{\mathrm{H}}_{12}{\mathrm{O}}_6}+\underset{\mathrm{Oxygen}}{6{\mathrm{O}}_2}\stackrel{∆}{\to }\underset{\mathrm{Water}}{6{\mathrm{H}}_2\mathrm{O}}+\underset{\mathrm{Carbon}\mathrm{dioxide}}{6{\mathrm{CO}}_2}+\mathrm{Energy}$

4. This change is irreversible and can not be turned back to their respective reactants.

Thus, the given statement is false, i.e., the burning of sugar is a temporary change.