Question

Physical & Chemical changes


0.1 Fill in the blanks with the appropriate words for each of the statements given below:

1. Germination of seeds is considered a
[physical/chemical] change.

2. If a change is permanent & irreversible it is considered a [chemical/physical]
change.

3. Heating a piece of iron, is considered a
[physical/chemical] change, while
heating a piece of coal (carbon) is considered a [physical/chemical] change.

4. Chemical changes may involve exchange of energy in the form of
&
ſlight/sound/magnetic/heat].

5. Change of milk to curd is a [desirable/undesirable) change.


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Answer 1

Answer:

1) Chemical

2) Chemical

3) Physical Chemical

4) Light and Heat

5) Desirable

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