Q9) Classify each of the following, as a physical or a chemical changes. Give
reasons.
a) Drying of a shirt in the sun
b) Change in the colour of black tea on adding lemon juice to it
c) Churning of milk cream to get butter.
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Answer:
a) physical change
b) chemical change
c) chemical change
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Explanation:
a) Drying of a shirt in the sun is a physical change because a new substance has not formed.
b) Change in the colour of black tea on adding lemon juice to it is a chemical change because it is not a reversible.
c) Churning of milk cream to get butter is a chemical change because a new substance has formed.
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