Question:
Plant absorbs boron as:
Plant absorbs boron as:
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Boron is unique among plant micro-nutrients because it is primarily absorbed as a neutral molecule (\(H_3BO_3\)) rather than an ion.
Updated On: Aug 18, 2026
- \(H_3BO_3\)
- \(H_4BO_3\)
- \(H_2BO_2\)
- \(H_2BO_3\)
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
Plants absorb essential nutrients from the soil solution in specific ionic or molecular forms.
Step 2: Detailed Explanation:
Boron is a micro-nutrient absorbed by plant roots primarily as undissociated boric acid, \(H_3BO_3\), from the soil solution under normal agricultural soil pH values (below pH 9.0).
Unlike major cations or anions, boron is predominantly absorbed as an uncharged, neutral molecule via passive diffusion and facilitated transport channels.
Step 3: Final Answer:
Plants absorb boron as \(H_3BO_3\), which is option (A).
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