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Chemistry Surface Chemistry General Single Correct MCQ
Published on: August 13, 2026

The combinations of two layers of opposite charges around the colloidal particle is called Helmholtz electrical double layer. The potential different between the fixed layer and the diffused layer of opposite charge is called

A
Electrode potential
B
Zeta potential
C
Adsorption potential
D
Diffused potential

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The correct answer is:
B

The first layer of ions is firmly held and is termed as fixed layer while the second layer is mobile or diffused layer according to Helmholtz electrical doubled layer. The potential differences between fixed and diffused layer is called electrokinetic potential or zeta potential.

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