Advertisements
Advertisements
Question
Classify the following as chemical or physical change:
Cutting of trees
Options
Chemical change
Physical change
Advertisements
Solution
Physical change
Explanation:
Cutting down trees changes their physical shape and size, but does not change their chemical composition or nature. Hence it is classified as a physical change.
APPEARS IN
RELATED QUESTIONS
Fill in the blank
Heat is ________ by a gas during the process of condensation.
What is a chemical change ? Give two examples of chemical changes.
Fill in the blank.
There is no change in the _____________of the substance during a physical change.
State whether the following statement is true or false. If false write the correct statement.
Melting of butter and wax are examples of chemical changes.
Give a reason why
Change of seasons is a periodic change while the change of weather is a non-periodic change.
Give a reason why rusting of iron is a chemical change but, the magnetization of iron is a physical change.
When ice melts to form water, change occurs in its
Gas exists in three states as solid, liquid, and gas.
When solute is dissolved in a solvent it forms a solution.
Two drops of dilute sulphuric acid were added to 1 g of copper sulphate powder and then small amount of hot water was added to dissolve it (step I). On cooling, beautiful blue coloured crystals got separated (step II). Step I and Step II are:
