Physical and Chemical Changes MCQ Questions for Class 7 Science Chapter 6 with Answers

We have completed the NCERT/CBSE chapter-wise Multiple Choice Questions for Class 7 Science book Chapter 6 Physical and Chemical Changes with Answers by expert subject teacher for latest syllabus and examination. You can Prepare effectively for the exam taking the help of the Class 7 Science Objective Questions PDF free of cost from here. Students can take a free test of the Multiple Choice Questions of Physical and Chemical Changes. Each Questions has four options followed by the right answer. Download the Science Quiz Questions with Answers for Class 7 free Pdf and prepare to exam and help students understand the concept very well.

MCQ Questions for Class 7 Science with Answers

Q1. The process of forming substances in their pure state from their solution is known as:

(i) galvanisation
(ii) neutralisation
(iii) crystallisation
(iv) all of these

(iii) crystallisation

Q2. Which of the following is an example of physical change?

(i) A bud turning into a flower
(ii) Rusting of iron
(iii) Boiling of water
(iv) Ripening of a tomato

(iii) Boiling of water

Q3. Which of the following is a chemical change?

(i) Bursting of a fire cracker
(ii) Germination of seed
(iii) Coal formation from buried trees
(iv) All of these

(iv) All of these

Q4. n chemical change

(i) Change is reversible
(ii) Molecules of a substance change
(iii) Molecules of the substance do not change
(iv) Substance remain same

(ii) Molecules of a substance change

Q5. Properties like size, shape, colour, state of a substance are

(i) chemical properties
(ii) mental properties
(iii) physical properties
(iv) physico-chemical properties

(iii) physical properties

Q6. Ships suffer a lot of damage from rusting inspite of being painted because:

(i) sea water contains many salts
(ii) sea water is bitter
(iii) sea water is sour
(iv) sea water is sweet

(i) sea water contains many salts

Q7. Which of the following is a chemical change?

(i) Dissolving of common salt into water
(ii) Changing of water into ice
(iii) Melting of ice
(iv) Rusting of iron

(iv) Rusting of iron

Q8. How crystal of pure substances are obtained?

(i) By crystallization
(ii) By chromatography
(iii) By peptization
(iv) By all these methods

(i) By crystallization

Q9. A change of state from one form to another is a

(i) physical change
(ii) chemical change
(iii) biological change
(iv) state variation

(i) physical change

Q10. Rusting of iron is a

(i) physical change
(ii) chemical change
(iii) both (i) and (ii)
(iv) all of these

(ii) chemical change

Q11. When you leave a piece of iron in the open for some time, it acquires a film of brownish substance. The substance is called:

(i) acid
(ii) base
(iii) rust
(iv) none of these

(iii) rust

Q12. Which of the following changes is accompanied by sound?

(i) Photosynthesis
(ii) Spoilage of food
(iii) Explosion of fire works
(iv) None of these

(iii) Explosion of fire works

Q13. What will happen if carbon dioxide gas is passed through lime water ?

(i) Calcium carbonate is formed
(ii) The lime water turns milky
(iii) Both of these
(iv) None of these

(iii) Both of these

Q14. Which characteristic best describes a physical change?

(i) Composition changes
(ii) Composition stays the same
(iii) Form stays the same
(iv) Mass is lost

(ii) Composition stays the same

Q15. Burning of any substance is a/an

(i) physical change
(ii) chemical change
(iii) irreversible change
(iv) both (ii) and (iii)

(iv) both (ii) and (iii)

Q16. Which of the following is a reversible change ?

(i) Rusting
(ii) Chemical
(iii) Physical
(iv) All of these

(iii) Physical

Q17. The reason for a physical change to be named as such is that the:

(i) change occurs only in physical properties
(ii) transfer of energy takes place
(iii) is a reversible change
(iv) All of the above

(i) change occurs only in physical properties

Q18. Galvanisation is a process used to prevent the rusting of which of the following?

(i) Iron
(ii) Zinc
(iii) Aluminium
(iv) Copper

(i) Iron

Q19. The process of depositing a layer of zinc over iron is known as

(i) aluminisation
(ii) galvanisation
(iii) fertilisation
(iv) ironing

(ii) galvanisation

Q20. Which among the following is a physical change?

(i) Burning of wood
(ii) Ripening of fruit
(iii) Cutting a log of wood in small pieces
(iv) Cooking of food

(iii) Cutting a log of wood in small pieces

Q21. Beating the alluminium in the boil is a:

(i) chemical change
(ii) rusting
(iii) physical change
(iv) none of these

(iii) physical change

Q22. The product formed by dissolving a substance into another is called

(i) Solution
(ii) Compound
(iii) Mixture
(iv) Solvent

(i) Solution

Q23. Which of the following changes is accompanied by sound?

(i) Photosynthesis
(ii) Spoilage of food
(iii) Explosion of fire works
(iv) None of these

(iii) Explosion of fire works

Q24. A chemical change may bring

(i) evolution of gas
(ii) change in colour
(iii) change in taste
(iv) all of these

(iv) all of these

Q25. A change that affects iron articles and slowly destroys them is:

(i) Rusting
(ii) Galvanisation
(iii) Chemical change
(iv) Crystallisation

(i) Rusting

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