Total Mn of a soil sample after digestion with HF (not upto dryness) can be measured through
A. Glass nebulizer
B. Teflon nebulizer
C. Both
D. None of the above
Answer: Option B
A. Glass nebulizer
B. Teflon nebulizer
C. Both
D. None of the above
Answer: Option B
Sources of negative charges on silicate clays is/are
A. Exposed crystal edges
B. Isomorphus substitution
C. Anion exchange
D. All of these
The most conspicuous chemical change that take place when soil is flooded is reduction of
A. Fe
B. P
C. S
D. None of these
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