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प्रश्न
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.
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उत्तर
- Making sugar solution is a physical change.
- A physical change is generally reversible.
- Grinding of wheat grain changes its size. It is a physical change.
- Iron benches kept in lawns and gardens get rusted. It is a chemical change because a new substance is formed.
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संबंधित प्रश्न
Fill in the blank
change in which the substance can be brought back to its original state is called a ............... change.
Melting of solid (wax) is a physical change.
Fill in the blank
Revolution of the earth around the sun is a ________ change.
Tick (√) the correct alternative from the choice given for the following statement.
A substance which can not sublime is
Classify the following as a physical or a chemical change.
Manufacture of salt from sea water
Fill in the blank.
The reaction in which energy is evolved is called
Differentiate between a physical change and a chemical change with reference to – Formation of products.
Fill in the blank with the correct word of the statement given below:
Sublimation of iodine is an example of _________ change.
Is a change of state of matter – a physical or a chemical change. Give reasons.
Which of the following is a physical change?
