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JEE Main202127 Aug 2021Morning ShiftChemistryHydrogenActual

Deuterium resembles hydrogen in properties but:

Options

  1. Areacts vigorously than hydrogen
  2. Breacts just as hydrogen
  3. Cemits β + particles
  4. Dreacts slower than hydrogen

Correct answer

D. reacts slower than hydrogen

Step-by-step solution

Reactivity of Deuterium is less than hydrogen due to high bond dissociation energy of D 2 Bond dissociation: H 2 D 2 435 . 88 443 . 35 Energy ( kJ / mole )

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