Nascent Hydrogen

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Q - 2)   What is nascent hydrogen? Describe its reactivity:
Nascent Hydrogen: 
                        Hydrogen at a time of its birth is chemically more reactive than molecular hydrogen because it is available in atomic form and known as Nascent Hydrogen or Newly born hydrogen.

Reactivity:
                        When a piece of Zn metal adds in the acidic Ferric chloride (FeCl3) solution, nascent hydrogen is generated which reduces FeCl3 into ferrous chloride (FeCl2) which is greenish in colour.
FeCl3(aq) + H2(g)
No reaction ­

Zn/HCl

FeCl3(aq) +  [H]
FeCl2(aq) + HCl(aq)

Nascent Hydrogen

Ferrous
Chloride

Acidic KMnO4 (pink) solution can be reduced by nascent hydrogen to colourless solution.


Nascent Hydrogen
Zn/H2SO4­

2KMnO44(aq) +  3H2SO4 + 10[H]
K2SO4(aq) + 2MnSO4(aq) +8H2O

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