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प्रश्न
Tick (√) the correct alternative from the choice given for the following statement
When sugar is heated, its colour changes into
पर्याय
red
brown
black
grey
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उत्तर
black
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संबंधित प्रश्न
What do you observe when :
a piece of paper is burnt
State whether the following is physical or chemical changes.
Melting of wax —
What role does energy play in initiating a chemical change ?
Under which different types can the following changes be classified?
Conversion of milk into yoghurt.
Under which different types can the following changes be classified?
Occurrence of an earthquake.
Under which different types can the following changes be classified?
Stretching of a spring.
Give reason.
While purchasing canned food, its expiry date should be checked.
Explain in brief the involvement of energy in physical and chemical changes.
How can a change occur in a substance?
What is the change?
