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JEE Main 202127 AugustMorning Shift
Exam
JEE Main
Year
2021
Date
27 August
Shift
Morning Shift
Subject
Chemistry
Chapter
Hydrogen

JEE Main 2021 · 27 August · Morning Shift · Chemistry · Hydrogen

Deuterium resembles hydrogen in properties but:

Deuterium resembles hydrogen in properties but:

Options

  1. Areacts vigorously than hydrogen
  2. Breacts just as hydrogen
  3. Cemits β+{\beta}^{+} 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 D2{D}_{2}

Bond dissociation:{H2D2435.88443.35\begin{cases}{H}_{2} & {D}_{2} \\ 435 . 88 & 443 . 35\end{cases}

Energy (kJ/mole)( kJ / mole )

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