Properties of Metals Quiz
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5 questions, one answer each
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1. Which of the following is a general physical property that distinguishes metals from non-metals?
- A. Metals are malleable and ductile, whereas non-metals are brittle
- B. Metals have lower melting points than non-metals
- C. Metals are poor conductors of electricity
- D. Metals are soluble in water
2. What is the relationship between thermal conductivity and electrical conductivity in metals?
- A. Metals that conduct heat poorly always conduct electricity well
- B. Metals that are good thermal conductors are generally also good electrical conductors
- C. Thermal and electrical conductivity are completely unrelated properties in metals
- D. Non-metals conduct heat better than metals conduct electricity
3. A metal reacts with dilute hydrochloric acid to produce hydrogen gas. Which of the following statements must be true about this metal?
- A. The metal must be more reactive than hydrogen
- B. The metal must be a non-metal
- C. The metal must have a very high melting point
- D. The metal must be insoluble in water
4. When a metal reacts with oxygen, the general products formed are:
- A. The metal and oxygen gas
- B. A metal oxide and hydrogen gas
- C. A metal oxide
- D. A metal carbonate and water
5. Three metals—sodium, magnesium, and copper—are each placed separately in cold water. Based on their reactivity, which of the following correctly predicts the observations?
- A. Sodium reacts vigorously, magnesium reacts slowly, and copper does not react
- B. All three metals react at the same rate
- C. Copper reacts vigorously, magnesium reacts moderately, and sodium does not react
- D. Magnesium reacts vigorously, sodium reacts slowly, and copper does not react