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Which one of the following is not a pigment?

Options

  1. AZinc oxide
  2. BChalk
  3. CWhite lead
  4. DSilica

Correct answer

D. Silica

Step-by-step solution

silica, is also known as silicon dioxide. It is compound of the two most abundant elements in Earth's crust, silicon and oxygen, SiO ₂ . It is most commonly found in nature as quartz. Zinc oxide is a white solid used as a pigment. Chalk is white solid made up of CaCO ₃ . Whitw lead is also a pigment containing mixture of lead carbonate and lead hydroxide ( PbCO ₃ ~Pb ( OH )₂ )

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