Advertisements
Advertisements
प्रश्न
Fill in the blank
Burning of fuel is a _______ change.
Advertisements
उत्तर
Burning of a fuel is a chemical change.
APPEARS IN
संबंधित प्रश्न
What do you observe when :
solid ammonium chloride is heated
State whether the following is physical or chemical changes.
Boiling of an egg —
True or false?
In a chemical change, rearrangement of molecules and atoms involves some energy changes.
Melting of solid (wax) is a physical change.
Under which different types can the following changes be classified?
Conversion of milk into yoghurt.
Give reason.
While purchasing canned food, its expiry date should be checked.
Fill in the blanks with the appropriate words of the statement given below:
Chemical changes may involve exchange of energy in the form of __________ and _________.
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.
- ______.
- ______.
- ______.
Observe the picture containing a kettle and note that it has salt water in it and answer the following questions:
- What is name of the process that is done to the kettle?
- What will happen to the content of the kettle?
- What kind of change is occurring on the cold surface of the metal plate?
- What can you say about the quality of water that is obtained in the beaker?
