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Mercury is highly hazardous and hence its concentration is expressed in the units of ppb (micrograms of Hg present in 1 L of water). Permissible level of Hg in drinking water is 0.0335 ppb . Which of the following is an alternate representation of this concentration?

Options

  1. A3.35 10⁻² mg dm ⁻³
  2. B3.35 10⁻⁵ mg dm ⁻³
  3. C3.35 10⁻⁵ mg m ⁻³
  4. D3.35 10⁻⁴ ~g ~L ⁻¹

Correct answer

B. 3.35 10⁻⁵ mg dm ⁻³

Step-by-step solution

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