GK
GENERAL SCIENCE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Which of the following is an example of physical change?
|
|
melting of ice
|
|
|
ripening of fruit
|
|
|
burning papers
|
|
|
digestion of food
|
Explanation:
Detailed explanation-1: -Melting of ice involves change in state of water from solid to liquid. Since it involves change in the state of water without forming any new substance, it is a physical change.
Detailed explanation-2: -1: Ice Melting is a physical change. When liquid water (H2O) freezes into a solid state (ice), it appears changed; However, this change is only physical as the the composition of the constituent molecules is the same: 11.19% hydrogen and 88.81% oxygen by mass.
Detailed explanation-3: -The melting point of pure water ice is 32°F (0°C).
Detailed explanation-4: -(d) The melting of ice is a physical change.
There is 1 question to complete.