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
Write short answer.
Name two reversible changes.
Classify the following changes as physical or chemical: curdling of milk
Name a chemical change which takes place in presence of:
State whether the following is physical or chemical changes.
shaping a piece of glass —
Classify the following as physical or chemical changes :
Breaking of a glass tumbler
What will you take into account while identifying the following?
A physical change in a substance.
Give a reason why – Addition of zinc nitrate to water is a physical change but, the addition of zinc to dilute nitric acid is a chemical change.
Filling up a balloon with hot air is a _______ change.
Tearing of sheet of paper into pieces is ______ By the process of Heating of water, change.
Which of the following is a physical change?
