Tag: hydrogen and its compounds

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Multiple choice chemistry hydrogen and its compounds heavy water study of heavy water hard water and soft water

$ \displaystyle 4{ D } _{ 2 }O+3Fe \xrightarrow[]{red-hot} Fe _{3}O _{4}+gas.$ The gas produced in the above reaction is:

  1. $ \displaystyle O _{2}$
  2. $ \displaystyle H _{2}$
  3. $ \displaystyle D _{2}$

  4. none
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Reaction:

$ \displaystyle 4{ D } _{ 2 }O+3Fe \xrightarrow[]{red-hot} Fe _{3}O _{4}+ D _2$. The gas produced in the reaction is deuterium.