Matter in Our Surroundings — Science STD 9 — Question
Rajasthan BoardEnglish MediumSTD 9ScienceMatter in Our Surroundings1 Mark
Question
Crystals of $\ce{KMnO4}$ in water proves that:
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Answer
$\ce{KMnO4}$ is made up of millions of tiny particles.
Each potassium permanganate crystal is made up of millions of small particles which keep on spreading and imparting colour to the water in which it is dissolved.
The changing of a solid directly into vapours on heating is called sublimation.
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