Which of the following is an example of a physical change? In this example, there is no change in chemical composition of matter.
(A) Coal changing into coal ash on burning
(B) Preparing a sweet drink by mixing sugar in water
(C) White washing walls using a solution of lime and water
(D) Mixing salt and lemon juice in a beaker
A.Only C
B.Only A
C.Only D
D.Only B✓ Correct
Explanation
Mixing sugar in water is a physical change because sugar dissolves without any chemical reaction; the chemical composition of sugar and water remains unchanged.
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