Which of the following corrosion products of lead serve as protective films?(a) Lead sulfates(b) Lead oxides(c) Lead phosphates(d) Sulfates, oxides, and phosphates of leadThis question was addressed to me in semester exam.This is a very interesting question from Materials in portion Materials of Corrosion Engineering

Which of the following corrosion products of lead serve as protective

1.	Which of the following corrosion products of lead serve as protective films?(a) Lead sulfates(b) Lead oxides(c) Lead phosphates(d) Sulfates, oxides, and phosphates of leadThis question was addressed to me in semester exam.This is a very interesting question from Materials in portion Materials of Corrosion Engineering
Answer» Right option is (d) Sulfates, OXIDES, and phosphates of lead For explanation: Lead and its ALLOYS are usually used piping, RADIATION shield, and storage batteries. It is resistant to corrosion in sulfuric ACID, CHROMIC acid, and phosphoric acid. Sulfates, oxides, and phosphates of lead are the corrosion products of lead that act as protective films.

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