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Dihydrogen reacts with dioxygen (02) to form water. Write the name and formula of the product when the isotope of hydrogen which has one proton and one neutron in its nucleus is treated with oxygen. Will the reactivity of both the isotopes be the same towards oxygen? Justify your answer.

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The isotope of hydrogen which contains one proton and one neutron is deuterium (D). Thus, when dideuterium reacts with dioxygen, deuterium oxide, i.e., heavy water is produced. The reactivity of H2 and D2 towards oxygen will be different. Since the D – D bond is stronger than H - H bond, therefore,...
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The isotope of hydrogen which contains one proton and one neutron is deuterium (D). Thus, when dideuterium reacts with dioxygen, deuterium oxide, i.e., heavy water is produced.

The reactivity of Hand D2 towards oxygen will be different. Since the D – D bond is stronger than H - H bond, therefore, H2 is more reactive than Dtowards reaction with oxygen.

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Chemist (Master's in Chemistry) with 7 years of teaching experience

2D2 +O2 -----> 2D2O(Deuterium oxide) No the reactivity of both oxides would not be the same because dideuterium is more stable compared to dihydrogen molecule.
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Specialist in Chemistry.

It forms heavy water D2O reactivity is different from the water as it is less reactive than water due to strong D-D bond strength as compare to H-H bond strength.
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