give application of absorption in gas marks
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Answer:
Various applications of adsorption are-
Production of high vacuum: The remaining traces of air can be adsorbed by charcoal from a vessel evacuated by a vacuum pump to give a very high vacuum.
Gas masks: Gas mask consists of activated charcoal or mixture of adsorbents is usually used for breathing in coal mines to adsorb poisonous gases.
Removal of colouring matter from solutions: Animal charcoal removes colours of solutions by adsorbing coloured impurities.
Adsorption indicators: Surfaces of certain precipitates such as silver halides have the property of adsorbing some dyes like eosin, fluorescein, etc. and thereby producing a characteristic colour at the end point.
Chromatographic analysis: Chromatographic analysis based on the phenomenon of adsorption finds a number of applications in analytical and industrial fields.Thin layer chromotography is based on adsorption.
Adsorption finds its application in Qualitative analysis also.
Explanation:
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