Moderate
Walkley and Blacks method of organic matter determination allows recovery of _____% organic carbon content:
Correct answer: A. 74 %
- A. 74 %
- B. 54 %
- C. 62.5 %
- D. 34%
Explanation
The Walkley-Black method oxidises only about 74 to 77 percent of the organic carbon, so a correction factor is commonly applied. The listed value closest to the standard recovery is 74 percent.
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