Metals and non metals mcq (1)

This document contains 50 multiple choice questions related to metals and non-metals. The questions cover various properties and reactions of metals and non-metals such as: which metals burn in air; the products formed when metals react with acids, oxygen, and water; physical properties like malleability and conductivity; and common metallic and non-metallic elements and compounds. The correct answers to each multiple choice question are also provided.