Question

One of the following does not happen during a chemical reaction this is
A) breaking of old chemical bonds and formation of new chemical bonds
B) formation of new substances with entirely different properties
C) atoms of one element change into those of another element to form new products
D) rearrangement of atoms takes place to form new products

Answer 1

hey mate

the answer is option a

that is

breaking of old chemical bonds and formation of new chemical bonds

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Answer 2

Option 'C' atoms of one element change into those of another element to form new products..

That is because no. of protons in an atom do not change during chemical reaction. It only takes place during fission...

Hope it helps you!!

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