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River water is a negatively charged colloidal solution of silicates dispersed in water and sea water contains Ca 2+ and Mg 2+ , so coagulation takes place. thus resulting the depostion of particles forming a delta.

Surface Chemistry

Question

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Deltas are formed where the river and sea water meet. Give reasons.

Answer

River water is a negatively charged colloidal solution of silicates dispersed in water and sea water contains Ca²⁺ and Mg²⁺, so coagulation takes place.
thus resulting the depostion of particles forming a delta.