Phosphine can be produced by _ of phosphorous acid.
Correct answer: D. Reduction
- A. Hydration
- B. Hydrolysis
- C. Oxidation
- D. Reduction
Explanation
Explanation:Phosphine can be produced by reduction of phosphorous acid (H3PO3) with a reducing agent such as sodium hypophosphite (NaPO2H2) or zinc (Zn). Hydration refers to the addition of water to a compound, and it is not a method for producing phosphine from phosphorus acid. Hydrolysis is a reaction in which a compound is broken down by water, and it is not a method for producing phosphine from phosphorus acid. Oxidation involves the loss of electrons by a compound, and it is not a method for producing phosphine from phosphorus acid.
This question appeared on the UHS MDCAT 2009 paper, which you can sit online with every answer explained.
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About Reactions of Group IV Elements
Group IV, or Group 14, chemistry covers the trends from carbon and silicon to tin and lead, including their reactions with oxygen, halogens, water, acids and alkalis. It also examines the structures and properties of their oxides and chlorides, oxidation states, and the inert pair effect, rather than treating all members as equally metallic.
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