2 H2PO3 + 7 Zn + 14 HCl → 2 PH3 + 7 ZnCl2 + 6 H2O
This is an oxidation-reduction (redox) reaction:
2 PIV + 14 e- → 2 P-III (reduction)
7 Zn0 - 14 e- → 7 ZnII (oxidation)
H2PO3 is an oxidizing agent, Zn is a reducing agent.
Reactants:
- H2PO3
- Zn
- HCl – Chlorane , Hydrogen chloride
- Other names: Hydrochloric acid , M , Uriatic acid
- Appearance: Colorless, transparent liquid, fumes in air if concentrated ; Colorless gas ; Colourless compressed liquefied gas with pungent odour ; Colorless to slightly yellow gas with a pungent, irritating odor. [Note: Shipped as a liquefied compressed gas.]
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