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Suspensions contain particles that are?

  1. Dissolved

  2. Undissolved

  3. Evaporated

  4. Condensed

The correct answer is: Undissolved

Suspensions contain particles that are undissolved. This means that the particles have not been broken down or dissolved into the solvent. This is what sets suspensions apart from solutions, which have particles that are fully dissolved. The options of A, C, and D are incorrect because in suspensions, the particles are not dissolved, evaporated, or condensed, but instead remain suspended in the solvent.