what is fractional distillation and chromatography? ?
Answers
Fractional distillation :
the process of separating the parts of a liquid mixture by heating it. As the temperature goes up, each part in turn becomes a gas, which then cools as it moves up a tube and can be collected as a liquid
द्रव-मिश्रण को तपा कर उसके अंश-विभाजन की प्रक्रिया, ताप बढ़ने के साथ प्रत्येक अंश गैस में बदल जाता है और फिर ठंडा होकर नली में से गुज़रते हुए द्रव बन जाता है
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chromatography :
the separation of a liquid mixture by passing it through a material through which some parts of the mixture travel further than others
द्रव-मिश्रण के द्रवों को एक-दूसरे से अलग करने की क्रिया। इस क्रिया में मिश्रण को एक ऐसे पदार्थ विशेष में से पार कराया जाता है जिसमें कुछ द्रव अन्यों से अधिक दूर चले जाते हैं; द्रव-मिश्रण का पृथक्करण.
hope helps uhh
1)Distillation in absence of air .
2) It is a physical process.
3)Two or more liquids are taken .
4)Nature of liquid :-Homogeneous
5)Fractional distillation column is used .
6)The difference between the boiling points of the liquids are less than 25K.
Definition :- The physical process by which two or more homogeneous liquids are separated in absence of air such that the difference between their boiling points is less than 25 K is called Fractional distillation.
Chromatography (Paper chromatography )
Definition :- It is a physical process used to separate ( identity ) those solutes that dissolved in the same solvent.
Note :- Kroma in Greek means colour .
Since , this technique was first used for separation ( identification) of colours , so the name was given Chromatography .
1)Physical process with highly scientific skill based .
2)Mixture are taken in quite small amount.
3)Factors :
1)Affinity (adsorption)
2)Retention factor
3)Gravity , density
4)Viscosity .
