Question

Which one of the following does not happen during a chemical reaction?

• A. Breaking of old chemical bonds and formation of new chemical bonds
• B. Formation of new substance with entirely different properties
• C. An atom of one element change into those of another element to form new products
• D. A rearrangement of atoms takes place to form new products

Answer 1

Answer: (C)

An atom of one element change into those of another element to form new products

According to Dalton's theory, atoms of same element are alike in all respect and atoms of different elements are different.

In a chemical reaction one substance is converted into another by rearrangement of atoms not by changing element of one type into other.