Advertisements
Advertisements
प्रश्न
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 _________.
Advertisements
उत्तर
Chemical changes may involve exchange of energy in the form of light and heat.
APPEARS IN
संबंधित प्रश्न
What do you observe when :
a piece of paper is burnt
State whether the following is physical or chemical changes.
Melting of wax —
Tick (√) the correct alternative from the choice given for the following statement
When sugar is heated, its colour changes into
Fill in the blank
An earthquake is a _______ change.
Chemical changes are accompanied by changes in energy.
What role does energy play in initiating a chemical 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?
Occurrence of an earthquake.
Explain in brief the involvement of energy in physical and chemical changes.
Paper, LPG, CNG petrol, etc, are ______ substances.
