All about Physical and Chemical Changes Chapter 7 MCQS

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Physical and Chemical Changes Chapter 7 MCQS

Physical and Chemical Changes ( PART 1 )

1. Which of the following is an example of a physical change?

 Melting of ice

 Burning of wood

 Cooking of eggs

 Rusting of iron

2. When water evaporates, it undergoes which type of change?

 Physical change

 Biological change

 Chemical change

 Nuclear change

3. Which of the following is a characteristic of a chemical change?

 Change in state

 Change in color

 Reversibility

 No change in properties

4. Rusting of iron is an example of a:

 Biological change

 Nuclear change

 Chemical change

 Physical change

5. What happens when a physical change occurs?

  Composition of substances remains the same

 Chemical bonds are broken and formed

 Energy is always absorbed

 New substances are formed

6. What is the result of a chemical change?

 Change in state

 Change in size

 Formation of new substances

 Change in shape

7. Which of the following is an example of a physical change in matter?

 Freezing of water

 Rotting of fruits

 Digestion of food

 Burning of coal

8. When ice melts into water, it is an example of:

 Physical change

 Nuclear change

 Chemical change

 Biological change

9. Which of the following is a characteristic of a physical change?

 Irreversible

 Change in chemical composition

 Formation of a new substance

 Formation of gas

10. What type of change occurs when milk turns sour?

  Nuclear change

 Chemical change

 Biological change

 Physical change

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Structure of an Atom ( PART 1 )