Question

The chromaplate or thin layer chromatography plate is made up of ____________

(a) Glass

(b) Wood

(c) Fibre

(d) Metal

This question was addressed to me in an interview for internship.

I want to ask this question from Thin Layer Chromatography topic in division Methods of Purification of Engineering Chemistry I

Answer 1

Correct choice is (a) Glass

For explanation I would say: The chromaplate or thin layer chromatography plate is made up of glass. TLC plates are usually commercially available, with standard particle size ranges to improve reproducibility. They are prepared by mixing the adsorbent, such as silica gel, with a small amount of inert binder like calcium sulfate (gypsum) and water.