Question

5 . Which of the following is true
a) In the chemical change only the chemical properties change .

b) Crystals are the purest form of substance .

c) The reaction in which heat is released is called endothermic reaction .

d) a) and c) only

e) b) and c) only

f) all of the above

Answer 1

Explanation:

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Answer 2

Answer:

D I think so.............