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प्रश्न
State whether the following is physical or chemical changes.
Melting of wax —
उत्तर
physical change.
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संबंधित प्रश्न
What do you observe when :
a piece of paper is burnt
Tick (√) the correct alternative from the choice given for the following statement
When sugar is heated, its colour changes into
True or false?
During a physical change energy is either given out or absorbed by the system.
Fill in the blank
An earthquake is a _______ change.
Melting of solid (wax) is a physical change.
What role does energy play in initiating a chemical change ?
Distinguish between the following.
Periodic change and non-periodic change
Under which different types can the following changes be classified?
Bursting of a cracker.
Fill in the blank with the correct word of the statement given below:
Ammonium chloride, a sublimable solid undergoes _________ on heating.
What is the change?
