Advertisements
Advertisements
प्रश्न
Fill in the blank.
The reaction in which energy is evolved is called
Advertisements
उत्तर
The reaction in which energy is evolved is called exothermic reaction.
APPEARS IN
संबंधित प्रश्न
Classify the following as chemical or physical change:
Melting of butter in a pan
Choose the most appropriate answer.
Rising and setting of the sun at a given place is a
How do you say that the process of digestion is a chemical change ?
Classify the following changes as physical or chemical:- photosynthesis in plants
Name a chemical change which takes place in presence of:
Give two examples of periodic changes.
Fill in the blanks with the appropriate words of the statement given below:
Heating a piece of iron is considered a __________ change while heating a piece of coal [carbon] is considered a ___________ change.
Select the chemical changes from the following list of changes
Drying of a fruit
State which of the following 1 to 5 pertain to – A: Physical Change B: Chemical change :
- Sublimation.
- Fermentation.
- Liquefaction or condensation.
- Magnetization.
- Respiration.
Mention some of the different conditions needed for chemical changes to occur.
