Corrosion is a destructive attack on metals / » Engineering Materials solved MCQs / By admin Question: Corrosion is a destructive attack on metals A. Which may be chemical or electrochemical in nature B. Which is basically caused by atmospheric air C. Which is caused by contact with other metals D. At high temperature Answer» a. Which may be chemical or electrochemical in nature Note: The above multiple-choice question is for all general and Competitive Exams in India.