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Standard VII
Chemistry
Crystallisation
Question

An example of chemical change is:

  1. water condensing on the outside of your cold beverage
  2. bending a wire
  3. slicing bread
  4. freezing water
  5. burning a candle

A
water condensing on the outside of your cold beverage
B
freezing water
C
bending a wire
D
burning a candle
E
slicing bread
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Solution
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The burning of the candle is permanent because once it is burnt it cannot be converted into the candle. A new product is also formed with a composition different from the candle. Hence it is a chemical change. Whereas the rest of the options represent the physical change.
Hence, the correct option is E.

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