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प्रश्न
Fill in the blank
Changes that occur in nature are called ______
उत्तर
Changes that occur in nature are called Natural changes.
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संबंधित प्रश्न
A burning candle shows both physical and chemical changes. Explain ?
Which of the following are physical changes and which are chemical changes ?
Glowing of an electric bulb
Fill in the blank.
The reaction in which energy is evolved is called
Given reason:
Freezing of water to ice and evaporation of water are physical changes.
State whether the following statement is true or false. If false write the correct statement.
Melting of ice is an exothermic, irreversible chemical change.
Fill in the blank with the correct word of the statement given below:
Sublimation involves a __________ change.
Give a reason why
Freezing of water is a reversible change while burning of a candle – an irreversible change.
Name the following.
The product obtained during a physical change when water converts from a liquid into a solid.
Tearing of sheet of paper into pieces is ______ By the process of Heating of water, change.
Which of the following is not a physical change?
