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प्रश्न
State whether the following is physical or chemical changes.
burning of sugar —
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उत्तर
chemical change,
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संबंधित प्रश्न
Fill in the blank.
Changes that occur in nature are called ........................
How do you say that the process of digestion is a chemical change ?
What do you observe when :
lighted match stick is brought near the mouth of the test tube containing hydrogen gas.
Write true or false
Melting of ice is a physical change.
Tick the most appropriate answer.
Physical changes are
Fill in the blank.
There is no change in the _____________of the substance during a physical change.
Fill in the blank with the correct word of the statement given below:
Sublimation of iodine is an example of _________ change.
Give four reasons why the burning of a magnesium ribbon in the air is considered a chemical change.
Compare the energy changes involved during a physical and a chemical change.
You are given some candle wax. Can you make a candle doll from it? What kind of change is this?
