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प्रश्न
When ice melts to form water, change occurs in its
विकल्प
position
colour
physical state
composition
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उत्तर
Physical state
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Cutting of trees
Fill in the blank.
Changes that occur in nature are called ........................
A burning candle shows both physical and chemical changes. Explain ?
Fill in the blank.
When a candle burns, wax melts. Melting of wax is a ________ change.
True or false
In a physical change no net energy change is involved.
Separate the following into physical and chemical changes :
Sublimation of a solid, Decomposition of water into hydrogen and oxygen by passing electric current, Formation of clouds, Making a fruit salad from raw fruits, Dissolving carbon dioxide in water
What is a chemical change ? Give two examples of chemical changes.
State why addition of sodium chloride to water is considered a physical change, while addition of dilute sulphuric acid to zinc is considered a chemical change.
What type of change is colouring of a paper?
Analogy:
Melting of ice: Physical change.
Popping of popcorn: ______.
