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प्रश्न
Differentiate between a physical change and a chemical change with reference to – Formation of products.
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उत्तर
| Physical change | Chemical change |
| No new products are formed. | New products are formed. |
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संबंधित प्रश्न
Explain the following giving an example.
Pure substance
Fill in the blank.
A new substance is formed in a ............... change.
Write true or false for the statement
A natural change can also be a desirable change
Write short answer.
Sublimation is classified as a physical change. Why ?
Fill in the blank
Chemical change occurs as a result of __________ between two substances.
Write true or false
Deforestation is a man-made change.
Classify the following as physical or chemical change :
Condensation of steam
Ice kept in a beaker, slowly melts and turns into water. The water in the beaker on solidification is freezing turns back to ice. Give four reasons why the change from ice to water and water back to ice is considered a physical change.
Give four reasons why the burning of a magnesium ribbon in the air is considered a chemical change.
Assertion: Burning of wood log to charcoal is a physical change.
Reason: The products formed of burning a piece of wood can be easily converted back to wood log.
