Question 2(c)
State whether the following statements are true or false. In case a statement is false, write the corrected statement in your notebook.
Iron pipes coated with zinc do not get rusted easily.

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Solution

Iron pipes coated with zinc do not get rusted easily.
The above statement is true.
Oxygen reacts more readily with zinc than iron. When iron pipes are coated with zinc, zinc reacts with oxygen forming a protective layer. This layer does not allow oxygen to come in contact with iron.

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State whether the following statements are true or false. In case a statement is false, write the corrected statement in your notebook.

(a) Cutting a log of wood into pieces is a chemical change. (True/False)

(b) Formation of manure from leaves is a physical change.

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Question 9.4

State whether the following statements are true or false. If false, correct them.

Air does not occupy any space.

State whether the following statements are true or false. In case a statement is false, write the corrected statement in your notebook.

Iron pipes coated with zinc do not get rusted easily.

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