Question

Select the incorrect statements(s).
1. Although ice, water and water vapour all look different and display different physical properties, they are chemically the same.
2. During burning of a candle, both physical and chemical changes take place.
3. Both water and cooking oil are liquid but their chemical characteristics are different. They differ in odour and inflammability.
4. It is the physical property of oil that makes it different from water.​

Answer 1

Answer:

3. Both water and cooking oil are liquid but their chemical characteristics are different. They differ in odour and inflammability.

This statement is incorrect

Answer 2

D.   It is the physical property of oil that makes it different from water is the incorrect statement

Explanation:

A. Ice, water, and water vapour all have various physical characteristics and appearances, but they are all chemically the same. Cooking oil and water are both liquids, however they have quite distinct chemical properties.

Their smell and flammability vary. We are aware that water puts out fire while oil burns in the air.

B. Candle wax melts when heated. because after cooling, it solidifies once more into wax. Therefore, wax melting and wax vapourization are physical changes. Chemical Changes: When wax is near a flame, it burns, releasing new gases like carbon dioxide and soot as well as heat and light.

C. Water is inflammable because of the presence of oxygen  its chemical makeup, but oil has a high level of flammability. A physical trait that helps you recognise them is odour

D. Chemical composition of oil  is different from water.

Therefore the chemical property of oil makes it different from water

Therefore Statement A, B, C are correct and statement D is incorrect

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