Topic Details (Notes format)

Colloids

Subject: Chemistry

Book: General Chemistry

Colloids are mixtures where one substance is dispersed in another in very fine particles (1–1000 nm). They remain suspended due to Brownian motion and electrostatic repulsion. Examples include gels, sols, and emulsions (e.g., milk). Colloidal stability is influenced by factors like pH and ionic strength. Understanding colloids is crucial for food science, pharmaceuticals, and nanotechnology.

Practice Questions

Which element is represented by the symbol 'Na'?

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Which acid is often referred to as the "king of chemicals"?

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What is the chemical formula for sodium hydroxide?

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What is the chemical formula for potassium chlorate?

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What is the chemical formula for calcium carbonate?

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Which element is the lightest in the periodic table?

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What is the chemical name for CH4?

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What is the chemical formula for potassium dichromate?

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What is the chemical formula for boric acid?

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What is the chemical formula for acetic acid?

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