Advertisements
Advertisements
प्रश्न
Tick (√) the correct alternative from the choice given for the following statement.
An example of both physical and chemical change is
विकल्प
burning of candle
melting of ice
cooking of food
blowing of bulb
Advertisements
उत्तर
burning of candle
APPEARS IN
संबंधित प्रश्न
Classify the following as chemical or physical change:
Dissolving common salt in water.
Tick (√) the correct alternative from the choice given for the following statement
A pop sound is heard when a lighted match stick is brought near the mouth of a jar. This indicates the release of gas.
Which of the following are physical changes and which are chemical changes ?
Which of the following are physical changes ?
- melting of iron metal
- rusting of iron metal
- bending of an iron rod
- drawing a wire of iron metal
Classify the Following as a Physical Or a Chemical Change.
Making of a Sugar Solution
Change is the law of nature and occurs in our everyday life, at all times and in all places. Differentiate between the following change with a suitable example.
Desirable and undesirable change.
Select the correct answer from the choice given below to complete the sentence
The matter is added or removed during a ____________ change.
If you leave a piece of iron in the open for a few days, it acquires a film of brownish substance, called rust.
Do you think rust is different from iron?
Mention a few physical properties of a substance.
Mention some of the different conditions needed for chemical changes to occur.
