SSC SSC JE Civil 2025 Mock Test Series (Paper 1 & Paper 2) Environmental Engineering Sewage

Which of the following pairs is not correctly matched?

1.

BOD₅

-

Temperature dependent

2.

Ultimate BOD

-

Independent of temperature

3.

COD

-

Total organic matter

4.

BOD₅/COD

-

Greater than one

1

1

2

2

3

3

4

4

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