Easy MCQ +4 / -1 PYQ · JEE Mains 2023

The starting material for convenient preparation of deuterated hydrogen peroxide ($\mathrm{D_{2}O_{2}}$) in :

  1. A $\mathrm{BaO_{2}}$
  2. B 2-ethylanthraquinol
  3. C $\mathrm{BaO}$
  4. D $\mathrm{K_{2}S_{2}O_{8}}$ Correct answer

Solution

$\mathrm{K}_2 \mathrm{~S}_2 \mathrm{O}_8$ is used in the laboratory preparation of $\mathrm{D}_2 \mathrm{O}_2$ <br/><br/>$$ \mathrm{K}_2 \mathrm{~S}_2 \mathrm{O}_8(\mathrm{~s})+2 \mathrm{D}_2 \mathrm{O}(\mathrm{l}) \rightarrow 2 \mathrm{KDSO}_4(\mathrm{aq})+\mathrm{D}_2 \mathrm{O}_2(\mathrm{l}) $$

About this question

Subject: Chemistry · Chapter: p-Block Elements · Topic: Group 13: Boron Family

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