Question

Which of the following is an example of a chemical change? alcohol evaporating (b) water boiling

Answer 1

Answer: Option (c) is the correct answer.

Explanation:

A property that does not bring any change in chemical composition of a substance are known as physical properties.

For example, shape, size, mass, volume, density, etc of a substance are all physical properties.

Water boiling, iodine vaporizing , and ice melting are all physical changes.

And, a property that changes chemical composition of a substance is known as chemical property.

For example, precipitation, reactivity, toxicity etc are chemical property.

Therefore, skin burning in the Sun is a chemical property.

Thus, we can conclude that skin burning in the Sun is an example of a chemical change.

Answer 2

Alcohol evaporating, water boiling, iodine evaporating and ice melting are all examples of physical changes of state.

skin burning in the sun is a chemical change as the actual skin is chemically altered by the sun

hope that helps