Chemistry – Metals

1. Which of the following elements are components of Brass?

  1. Copper and Zinc
  2. Copper and Tin
  3. Copper and Nickel
  4. Copper and Aluminum
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Answer: Option A. Copper and Zinc

2. Which of the following metals is the least efficient conductor of heat compared to others?

  1. Mercury
  2. Aluminum
  3. Iron
  4. Lead
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Answer: Option D. Lead

3. Which of the following is also known as white gold?

  1. Silver
  2. Palladium
  3. Platinum
  4. Rhodium
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Answer: Option C. Platinum

4. Alkali metals are known as good reducing agents. This means that they:

  1. Gain electrons readily
  2. Easily lose electrons
  3. Are poor conductors of electricity
  4. Have high melting points
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Answer: Option B. Easily lose electrons

5. Identify the alkaline earth metal from the following options:

  1. Sodium
  2. Magnesium
  3. Potassium
  4. Lithium
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Answer: Option B. Magnesium