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प्रश्न
State whether the following is physical or chemical changes.
burning of wood -
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उत्तर
chemical change,
APPEARS IN
संबंधित प्रश्न
What do you observe when :
a piece of paper is burnt
State whether the following is physical or chemical changes.
passing electric current through a heater rod —
Tick (√) the correct alternative from the choice given for the following statement
When sugar is heated, its colour changes into
True or false?
In a chemical change, rearrangement of molecules and atoms involves some energy changes.
Distinguish between the following.
Natural change and man-made change
Under which different types can the following changes be classified?
Bursting of a cracker.
Under which different types can the following changes be classified?
Stretching of a spring.
Fill in the blank with the correct word of the statement given below:
Ammonium chloride, a sublimable solid undergoes _________ on heating.
How can a change occur in a substance?
Picture based question
Observe the picture and list down the changes that are accompanied in the picture.
- ______.
- ______.
- ______.
