Default Title

Question (1)

QN001041

Which of the following is a physical change?

(A) Rusting of iron
(B) Burning of paper
(C) Melting of ice
(D) Curdling of milk

Correct Answer: C

Explanation:

Melting of ice changes only the state of water; no new substance is formed.

Link:

Report Error

Question (2)

QN001042

In a physical change, which of the following remains unchanged?

(A) Shape only
(B) State only
(C) Chemical composition
(D) Size only

Correct Answer: C

Explanation:

In a physical change, the chemical composition remains the same.

Link:

Report Error

Question (3)

QN001043

A student folded a paper boat and then unfolded it. Which statement is correct?

(A) A new substance was formed
(B) Only appearance changed
(C) Chemical properties changed
(D) The paper disappeared

Correct Answer: B

Explanation:

Folding changes only the shape of paper.

Link:

Report Error

Question (4)

QN001044

Which of the following changes only the state of a substance?

(A) Burning wood
(B) Melting wax
(C) Rusting iron
(D) Cooking food

Correct Answer: B

Explanation:

Melting wax is a change of state.

Link:

Report Error

Question (5)

QN001045

Crushing a chalk piece into powder is a physical change because

(A) heat is produced
(B) colour changes
(C) no new substance is formed
(D) gas is released

Correct Answer: C

Explanation:

The chalk remains the same substance after crushing.

Link:

Report Error

Question (6)

QN001046

Which property may change during a physical change?

(A) Chemical composition
(B) Physical appearance
(C) Nature of substance
(D) Molecular identity

Correct Answer: B

Explanation:

Physical properties like size and shape may change.

Link:

Report Error

Question (7)

QN001047

A balloon inflated with air was released without tying. What happened?

(A) A new balloon formed
(B) The rubber changed chemically
(C) The balloon returned close to its original shape
(D) The balloon became heavier

Correct Answer: C

Explanation:

Air escaped and the balloon regained its earlier form.

Link:

Report Error

Question (8)

QN001048

Which of the following involves a change in shape only?

(A) Folding clothes
(B) Burning candle wax vapour
(C) Rust formation
(D) Milk turning sour

Correct Answer: A

Explanation:

Folding clothes changes only shape.

Link:

Report Error

Question (9)

QN001049

Which statement correctly defines a physical change?

(A) A change in which new substances are always formed
(B) A change in which only physical properties change
(C) A change that always produces heat
(D) A change that cannot be reversed

Correct Answer: B

Explanation:

Physical changes affect only physical properties.

Link:

Report Error

Question (10)

QN001050

The change of water into steam is called a physical change because

(A) steam is lighter than water
(B) water disappears completely
(C) no new substance is formed
(D) oxygen is released

Correct Answer: C

Explanation:

Steam is still water in gaseous form.

Link:

Report Error

Question (1)

Which of the following is a physical change?

Explanation:

Link:

Question (2)

In a physical change, which of the following remains unchanged?

Explanation:

Link:

Question (3)

A student folded a paper boat and then unfolded it. Which statement is correct?

Explanation:

Link:

Question (4)

Which of the following changes only the state of a substance?

Explanation:

Link:

Question (5)

Crushing a chalk piece into powder is a physical change because

Explanation:

Link:

Question (6)

Which property may change during a physical change?

Explanation:

Link:

Question (7)

A balloon inflated with air was released without tying. What happened?

Explanation:

Link:

Question (8)

Which of the following involves a change in shape only?

Explanation:

Link:

Question (9)

Which statement correctly defines a physical change?

Explanation:

Link:

Question (10)

The change of water into steam is called a physical change because

Explanation:

Link:

Excel With Tutors

ExcelWithTutors

For Student

For Tutors

Learn

OUR POLICY