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Question
Which of the following changes take place when a paper is folded into a paper plane?
Which of the following changes take place when a paper is folded into a paper plane?
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Solution
The correct options are
B Reversible change
C Physical change
A change in which physical properties of a substance like shape, size, state, etc changes is called a physical change. A physical change is easily reversible and there is no formation of a new substance. Making a paper plane is a physical change since only the shape of the paper is changing and there is no formation of a new product. Moreover, the paper that is converted to the paper plane is not a permanent change and can easily be brought back to its initial state whenever required. Hence, it is a reversible change.
B Reversible change
C Physical change
A change in which physical properties of a substance like shape, size, state, etc changes is called a physical change. A physical change is easily reversible and there is no formation of a new substance. Making a paper plane is a physical change since only the shape of the paper is changing and there is no formation of a new product. Moreover, the paper that is converted to the paper plane is not a permanent change and can easily be brought back to its initial state whenever required. Hence, it is a reversible change.
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