Question

Which of the following do not form colloids spontaneously​

Answer 1

Answer:

Gas-gas colloidal system is not possible as we can't distinguish between the dispersed phase and dispersed medium.

Hope it helps you...

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Answer 2

Answer:

Lyophobic do not form colloids spontaneously​.

Explanation:

• Lyophobic colloids are those that dislike liquid.
• The term lyophobic is derived from the Greek words lyo and phobic, which respectively indicate liquid and phobic.
• Lyophobic colloids are colloidal solutions in which the dispersed phase has a low affinity for the dispersion medium.
• The solution of this colloid is known as lyophobic sol, and it cannot be made directly. Special techniques are used to prepare them.
• In nature, the lyophobic sols are irreversible. They are coagulable, and a small amount of electrolyte can quickly coagulate them.

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