Question:
Which of the following best represents the pH range of sodic soils?
Which of the following best represents the pH range of sodic soils?
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Soil pH ranges:
- Sodic soils: pH > 8.5.
- Saline soils: pH < 8.5.
- Acidic soils: pH < 6.5.
- Neutral soils: pH 6.5-7.5.
- Sodic soils: pH > 8.5.
- Saline soils: pH < 8.5.
- Acidic soils: pH < 6.5.
- Neutral soils: pH 6.5-7.5.
Updated On: Aug 27, 2026
- 8-10
- < 8.5
- > 8.5
- 6.0-8.0
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Question:
This question tests knowledge of soil pH classification.
Step 2: Detailed Explanation:
Sodic soils (alkali soils) have a pH range of > 8.5 (C).
They are characterized by high sodium content and poor physical properties.
The pH of sodic soils is high due to the presence of sodium carbonate and bicarbonate.
Other pH ranges:
- 8-10 (A): Too broad.
- < 8.5 (B): Not sodic.
- 6.0-8.0 (D): Neutral to slightly alkaline.
Thus, sodic soils have pH > 8.5.
Step 3: Final Answer:
Thus, the pH range of sodic soils is > 8.5, which corresponds to option (C).
[0.5cm]
This question tests knowledge of soil pH classification.
Step 2: Detailed Explanation:
Sodic soils (alkali soils) have a pH range of > 8.5 (C).
They are characterized by high sodium content and poor physical properties.
The pH of sodic soils is high due to the presence of sodium carbonate and bicarbonate.
Other pH ranges:
- 8-10 (A): Too broad.
- < 8.5 (B): Not sodic.
- 6.0-8.0 (D): Neutral to slightly alkaline.
Thus, sodic soils have pH > 8.5.
Step 3: Final Answer:
Thus, the pH range of sodic soils is > 8.5, which corresponds to option (C).
[0.5cm]
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