NCERT Resources > NCERT Class 12 > NCERT Class 12 Chemistry

Access Free Repository for Chemistry Grade 12

Champion high school Chemistry and head towards becoming an integral part of global institutions with Learner's Note. Download Learner's Note's FREE learning resources for grade 12 Chemistry learners now and see the exceptional learning outcomes. With our learning repository, your child can finally concentrate on developing scientific temper, analytical skills and more and become an achiever. Get Grade 12 CBSE Chemistry solution-inspired repository now.
Navigate through the repository by searching for resources on the basis of subjects and topics. Happy learning to you!

Class 12
Chemistry :-NCERT Solution - Principles and processes of isolation of elements.

Exercise 2 Question 10 

What is meant by the term "chromatography"?

Answer:

Chromatography is a collective term used for a family of laboratory techniques for the separation of mixtures. The term is derived from Greek words 'chroma' meaning 'colour' and 'graphein' meaning 'to write'. Chromatographic techniques are based on the principle that different components are absorbed differently on an absorbent. There are several chromatographic techniques such as paper chromatography, column chromatography, gas chromatography, etc.