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The measured BOD values for four differe...

The measured BOD values for four different water samples (A-D) are as follows A = 3 ppm , B = 19 ppm , C = 21 ppm , D = 4 ppm .The water samples which can be called as highly polluted with organic wastes , are

A

A and B

B

A and D

C

B and C

D

B and D

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JEE MAINS PREVIOUS YEAR-JEE MAINS 2022-CHEMISTRY (SECTION A)
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