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_______ is a chemical substance which reduces the corrosion rate.

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_______ is a chemical substance which reduces the corrosion rate.

(a) Corrosion inhibitor

(b) Corrosion initiator

(c) Electrolyte

(d) Corrosive medium

The question was asked at a job interview.

My question is taken from Corrosion and its Classification in division Corrosion Principles of Corrosion Engineering

1 Answer

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Right choice is (a) Corrosion inhibitor

Easiest explanation: An inhibitor is a substance that, when added in small concentrations to an environment, decreases the corrosion rate.

Following are the types of inhibitors:

i. Adsorption-type

ii. Hydrogen-evolution poisons

iii. Scavengers

iv. Vapor-phase

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