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Hydrogen — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryHydrogen1 Mark
Question
Why does elemental hydrogen react with other substances slowly at room temperature?
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Answer

It is because it has high bond dissociation energy $\left(436 \mathrm{~kJ} \mathrm{~mol}^{-1}\right)$ due to smaller bond length.

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