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Is Matter Around Us Pure ? — Science STD 9 — Question

Rajasthan BoardEnglish MediumSTD 9ScienceIs Matter Around Us Pure ?2 Marks
Question
Why direct heating of ink is avoided, during separation of ink?
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Answer

If ink is heated directly at high temperatures, the dye may get decomposed. and we could not be able to separate the ink components so a water bath is used for evaporation process.

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