Which is the least harmful salt for agricultural soil? – McqOptions

MCQOPTIONS

1.	Which is the least harmful salt for agricultural soil?
A.	Na<sub>2</sub>CO<sub>3</sub>
B.	Na<sub>2</sub>SO<sub>4</sub>
C.	NaCl
D.	NaOH
Answer» D. NaOH

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