Question:
The swelling and shrinking nature of black cotton soil is primarily due to the presence of:
The swelling and shrinking nature of black cotton soil is primarily due to the presence of:
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For expansive soils, remember: - Montmorillonite: High swelling/shrinking. - Kaolinite: Low plasticity. - Illite: Moderate plasticity.
Updated On: Jan 7, 2025
- Kaolinite
- Illite
- Montmorillonite
- Vermiculite
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The Correct Option is C
Solution and Explanation
Montmorillonite is a type of clay mineral with high swelling and shrinking properties. Black cotton soils contain a significant amount of montmorillonite, which is responsible for their expansive behavior. This property affects construction and agriculture on such soils.
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