Consider the following statements regarding organic carbon estimation following Walkley and Black method :
(A) Organic carbon estimated by this method excludes most of the less active organic matter
(B) 100% of the total oxidizable organic carbon is oxidized in this method
(C) Soil organic matter percentage can be calculated by multiplying estimated organic carbon percentage by 1.724
(D) K2SO4 and H2SO4 are used as reagents
Choose the most appropriate answer from the options given below :
1
(B) and (D) Only
2
(A) and (B) Only
3
(A) and (C) Only
4
(B) and (C) Only