Cathodic protection of a metal pipe against corrosion usually entails ______. A.

Question

Cathodic protection of a metal pipe against corrosion usually entails ______.

A.coating the pipe with another metal whose standard reduction potential is less negative than that of the pipe

B.attaching an active metal to make the pipe the anode in an electrochemical cell

C.attaching an active metal to make the pipe the cathode in an electrochemical cell

D.attaching a dry cell to reduce any metal ions which might be formed

E.coating the pipe with a fluoropolymer to act as a source of fluoride ion (since the latter is so hard to oxidise)

Explanation / Answer

Solution :-

Cathodic protection of the metal pipe against the corrosion is nothing but attaching an active metal to make the pipe the cathode in the electrochemical cell.

Therefore the correct answer is the option 'C'

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.