Chemical properties of metals MCQs Multiple-choice questions (MCQs) on the chemical properties of metals, commonly asked in exams like NTSE and IIT-JEE, along with their answers: Type A 1. Metals generally react with acids to produce: - A) Carbon dioxide - B) Hydrogen gas - C) Oxygen gas - D) Nitrogen gas - Answer: B) Hydrogen gas 2. Which of the following metals does not react with cold water? - A) Sodium - B) Magnesium - C) Iron - D) Copper - Answer: D) Copper 3. When a metal reacts with oxygen, the product formed is generally: - A) Metal hydroxide - B) Metal oxide - C) Metal carbonate - D) Metal chloride - Answer: B) Metal oxide 4. The formation of a greenish layer on copper when exposed to air is due to the formati...
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