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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
State whether the following statement is true or false. In case a statement is false, write the corrected statement.
Cutting a log of wood into pieces is a chemical change.
Fill in the blank
change in which the substance can be brought back to its original state is called a ............... change.
Classify the following changes as physical or chemical:- melting of a solid (wax)
Fill in the blank.
When a candle burns, wax melts. Melting of wax is a ________ change.
Classify the following as a physical or a chemical change.
Boiling of water
Classify the Following as a Physical Or a Chemical change.
Glowing of an Electric Bulb
Fill in the blank.
There is no change in the _____________of the substance during a physical change.
Explain the term – ‘sublimation’. Is sublimation of naphthalene – a physical or a chemical change. Give reasons.
Ammonium chloride is also a sublimable solid. Give a reason why the sublimation of ammonium chloride involves a physical and a chemical change.
Sublimation of Iodine is a ______.
