Which of the following ions have a high tendency to pitting corrosion?(a) Chlorides(b) Bromides(c) Hypo chlorites(d) Chlorides, bromides, and hypochloritesThis question was posed to me during a job interview.My doubt stems from Eight Forms topic in section Eight Forms of Corrosion of Corrosion Engineering

Which of the following ions have a high tendency to pitting corrosion?

1.	Which of the following ions have a high tendency to pitting corrosion?(a) Chlorides(b) Bromides(c) Hypo chlorites(d) Chlorides, bromides, and hypochloritesThis question was posed to me during a job interview.My doubt stems from Eight Forms topic in section Eight Forms of Corrosion of Corrosion Engineering
Answer» Right ANSWER is (d) CHLORIDES, bromides, and hypochlorites To explain: In practical applications, most pitting failures are caused by chloride ions, hypochlorites, and bromide ions. OXIDIZING metal ions with chlorides are aggressive pitters. CUPRIC, ferric, and mercuric halides are extremely aggressive.

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