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The range for threshold odour number is __________

(a) 0-3

(b) 1-5

(c) 1-3

(d) 0-5

I had been asked this question in final exam.

Query is from Physical characteristic of Water topic in portion Quality of Water of Environmental Engineering

1 Answer

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Best answer
Correct choice is (c) 1-3

Easiest explanation: The maximum value of Threshold odour number is 3 and its range is 1-3. The threshold odour number is used to measure the intensity of taste and odour.

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