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प्रश्न
A chemical reaction does not involve:
विकल्प
Formation of new substances having entirely different properties than that of the reactants.
Breaking of old chemical bonds and formation of new chemical bonds.
Rearrangement of the atoms of reactants to form new products.
Changing the atoms of one element into those of another element to form new products.
MCQ
उत्तर
Changing the atoms of one element into those of another element to form new products.
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