EVERYDAY SCIENCE

SCIENCE

PHYSICAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A chemical change is easier to reverse than a physical change.
A
True
B
False
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Chemical changes are frequently harder to reverse than physical changes. One good example of a chemical change is burning a candle.

Detailed explanation-2: -False-During a chemical change, the composition of the original substance is altered and the change is irreversible.

Detailed explanation-3: -Physical changes do not make a new substance. Since objects do not become a different substance during a physical change, it is usually easy to reverse the change. For example, if you dissolve sugar in water you can easily reverse the change by evaporating the water from the solution.

Detailed explanation-4: -Thus, the given statement is true, i.e., Physical changes are reversible.

Detailed explanation-5: -The change is permanent and cannot be reversed. So, chemical changes are mostly irreversible and physical changes are reversible. Hence, the given statement is true.

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