Advertisements
Advertisements
प्रश्न
What do you observe when :
a spoon of sugar is heated in a pan
Advertisements
उत्तर
When a spoon of sugar is heated in a pan, black (charred sugar) (carbon) is seen. Is a chemical change.
APPEARS IN
संबंधित प्रश्न
Fill in the blank
Burning of fuel is a _______ change.
Chemical changes are accompanied by changes in energy.
What role does energy play in initiating a chemical change ?
Distinguish between the following.
Natural change and man-made change
Under which different types can the following changes be classified?
Conversion of milk into yoghurt.
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.
Give reason.
A dry handkerchief gets wet at once on dipping in water, but it takes longer for a wet handkerchief to dry.
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 _________.
Picture based question
Observe the picture and list down the changes that are accompanied in the picture.
- ______.
- ______.
- ______.
