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Assertion (A): Rust forms on a piece of iron kept in a damp place. Reason (R): Rust is created when iron reacts with oxygen dissolved in water.
Correct Answer: (a)
Official keyThis question appeared in the MNPSC Prelims 2013 examination (GS). It is Question 37 out of 200 questions in this paper.
This question was part of the MNPSC Prelims 2013 (GS). The MNPSC Prelims examination tests candidates on general studies, current affairs, and aptitude through multiple-choice questions.
Practice previous year questions from all MNPSC Prelims papers and compare patterns with UPSC Prelims PYQ to identify overlapping topics.