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Which of the following is the least noble metal?

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Which of the following is the least noble metal?

(a) Magnesium

(b) Brass

(c) Aluminium

(d) Nickel

I have been asked this question in an online interview.

This intriguing question comes from Galvanic Series in portion Corrosion, Electrolysis, Fuel Cells and Batteries of Engineering Chemistry II

1 Answer

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The correct option is (a) Magnesium

Explanation: Magnesium is the least noble metal present at the corroded end of the galvanic series. It corrodes very easily and at very fast rate.

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