Which term describes solid particles suspended in air?

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Prepare for the Chemistry 1LC Practical Test. Engage with multiple choice questions, interactive flashcards, and detailed explanations to enhance your understanding and boost your confidence for the exam.

Multiple Choice

Which term describes solid particles suspended in air?

Explanation:
Solid particles suspended in air are described as dusts. These are tiny solid fragments such as soil, pollen, ash, or metabolic debris that stay dispersed in air because of air currents and Brownian motion. This distinguishes them from mists, which are liquid droplets suspended in air, and from smoke, which comes from combustion and often contains a mix of solid particles and liquid droplets. Nanoparticles is a size-focused term and can refer to solids (or liquids) at the nanometer scale, but it doesn’t specifically define solid particles suspended in air. So dusts is the most accurate term.

Solid particles suspended in air are described as dusts. These are tiny solid fragments such as soil, pollen, ash, or metabolic debris that stay dispersed in air because of air currents and Brownian motion. This distinguishes them from mists, which are liquid droplets suspended in air, and from smoke, which comes from combustion and often contains a mix of solid particles and liquid droplets. Nanoparticles is a size-focused term and can refer to solids (or liquids) at the nanometer scale, but it doesn’t specifically define solid particles suspended in air. So dusts is the most accurate term.

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