Q18 / 160 · TS EAMCET 2018 (05 May Shift 2) · Chemistry

Pure water would have a BOD value of

  • Correct answer
    A
    about $1 \mathrm{ppm}$
  • B
    $5-10 \mathrm{ppm}$
  • C
    $10-15 \mathrm{ppm}$
  • D
    $15-20 \mathrm{ppm}$

Solution

A pure water would have about $1 \mathrm{ppm}$ value. A water supply with BOD level of $3-5 \mathrm{ppm}$ is moderately clean, and water with a BOD level of 6-9 ppm is considered as polluted water.

Hence, the correct answer is option: 'A'.

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