Gold and copper happen to absorb ______ and violet light, leaving yellow light.

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SSC CGL 2021 Tier-I (Held On : 12 April 2022 Shift 3)
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  1. green
  2. blue
  3. red
  4. orange

Answer (Detailed Solution Below)

Option 2 : blue
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Detailed Solution

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The correct answer is blue.

Key Points

  • Gold and copper happen to absorb blue and violet light, leaving yellow light in the spectrum.
  • So gold and copper are yellowish in colour.
  • The only two non-silvery metals in the world are gold and copper.
  • A metal is defined as an element that readily forms positive ions (cations) and has metallic bonds.
  • These elements have electrons that are loosely held to the atoms, and will readily transfer them. 
  • Most metals' electrons reflect all colours equally which are in the visible spectrum of light.
  • So those metals appear as white silver.
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