Match the following columns:

Column I (Available nutrients)	Column II (Extractant)
a. Boron	1. 0.15% CaCl2 Solution
b. Nitrogen	2. Hot water
c. Sulpher	3. Alkaline KMNO4

Solution(By Examveda Team)

Boron is extracted with a pressurized and conventional boiling hot water extraction method. this method is inexpensive and rapid to predict Boron availability in arid soils.
The easily hydrolyzable and oxidizable fractions of organic nitrogen present in a soil sample can be extracted using alkaline KMnO₄, which is a mild oxidizing agent. In this method, a known amount of soil sample is boiled with a measured quantity of alkaline KMnO₄.
Total Sulphur in soils was determined by the method of Steinbergs and soluble sulphate by extraction with 0.15% calcium chloride. Since calcium is the primary cation on the adsorbed complex of soils, the CaCl₂ solution is better able to extract other absorbed cations than would solutions containing other cations.