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Q.

Which of the following from I, II and III represent a chemical change ?

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a

Both I and II

b

Both II and III

c

Both I and III

d

All of the above

answer is C.

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Detailed Solution

Germination of seed is a chemical change

i) Seed grow into new plant or tree the characters and appearance changes.

iii) Burning of sparkler is a chemical change. Heat, light and smoke are produced.

Formation of dew on leaves (ii) is a physical change. 

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Which of the following from I, II and III represent a chemical change ?