Advertisements
Advertisements
Question
What type of change is colouring of a paper?
Advertisements
Solution
Physical change.
APPEARS IN
RELATED QUESTIONS
Classify the following as chemical or physical change:
Melting of butter in a pan
Choose the most appropriate answer.
Rising and setting of the sun at a given place is a
Define a chemical change. Give two examples of the above changes.
Fill in the blank.
The reaction in which energy is evolved is called
Potassium chloride is added to water and stirred. A salt solution is obtained, which is then boiled, leaving behind a residue.
- Is the above change physical or chemical?
- Name the residue which remains behind after the salt solution is boiled.
- Is the change reversible or not reversible?
- Are the composition and properties of the original substance altered?
- Give a reason why the above experimentation would not be possible if calcium carbonate was taken in place of potassium chloride.
Select the chemical changes from the following list of changes
Glowing of an electric bulb.
Select the correct answer from the choice given below to complete the sentence
A change in which a substance retains its identity is a
______ change.
When a woolen yarn is knitted to get a sweater, the change can be classified as ____________.
Ice, water and water vapour look different and display different ______ properties but they are ______ the same.
Fill in the blanks in the following statements using the words given in the box.
| rusted, colourful, substance, chemical, physical, reversible, iron oxide, object |
- Making sugar solution is a ______ change.
- A physical change is generally ______.
- Grinding of wheat grain changes its size. It is a ______ change.
- Iron benches kept in lawns and gardens get ______. It is a ______ change because a new ______ is formed.
