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प्रश्न
True or false?
During a physical change energy is either given out or absorbed by the system.
पर्याय
True
False
उत्तर
True
APPEARS IN
संबंधित प्रश्न
What do you observe when :
a piece of paper is burnt
What do you observe when :
solid ammonium chloride is heated
State whether the following is physical or chemical changes.
Melting of wax —
Distinguish between the following.
Periodic change and non-periodic change
Under which different types can the following changes be classified?
Conversion of milk into yogurt.
Under which different types can the following changes be classified?
Stretching of a spring.
Picture based question
Observe the picture and list down the changes that are accompanied in the picture.
- ______.
- ______.
- ______.
Paper, LPG, CNG petrol, etc, are ______ substances.
______ is the process in which something becomes different from what it was earlier.
Cut vegetables turn brown when exposed to air, this is due to ______.
