Question

Chelating agents prevent formation of insoluble of _________________________

(a) Calcium precipitates

(b) Enzyme precipitates

(c) Metal precipitates

(d) Product precipitates

The question was asked in an internship interview.

Origin of the question is Medium Formulation topic in chapter Introduction to Fermentation Processes & Media for Industrial Fermentation of Bioprocess Engineering

Answer 1

Correct option is (c) Metal precipitates

For explanation I would say: A chelate is a chemical compound composed of a metal ion and a chelating agent. A chelating agent is a substance whose molecules can form several bonds to a single metal ion. In other words, a chelating agent is a multidentate ligand. An example of a simple chelating agent is ethylenediamine.