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प्रश्न
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.
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उत्तर
Heating a piece of iron is considered a physical change while heating a piece of coal [carbon] is considered a chemical change.
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Passing of electric current through water, and water breaking down into hydrogen and oxygen gases.
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.
State whether the following is physical or chemical changes.
cutting wood into small pieces —
Classify the following as a physical or a chemical change.
Boiling of water
Define a chemical change. Give two examples of the above changes.
What will you take into account while identifying the following?
A chemical change in a substance.
Fill in the blank with the appropriate word of the statement given below:
If a change is permanent and irreversible it is considered a _________ change.
Fill in the blank with the correct word of the statement given below:
Sublimation of iodine is an example of _________ change.
Select the chemical changes from the following list of changes
Breaking of glass
Classify the following as physical or chemical properties
The composition of a sample of steel is 98% iron, 1.5% carbon and 0.5% other elements.
