Question

Which of the following statements is incorrect
about redox titrations?
(1) Mno cannot act as the self-indicator in the
titration of Mno, and Fe2+
(2) An effective indicator ensures a minimal
'overshoot in colour near the equivalence
point
(3) Cr, is not a self-indicator
(4) On addition of starch after the liberation of
iodine from the reaction of Cu2+ ions with
iodide ions, an intense blue colour appears​

Answer 1

Answer:

(2) an effective indicator ensures..

Answer 2

The incorrect about redox titrations is 2) An effective indicator ensures a minimal 'overshoot in colour near the equivalence'

Explanation:

1.Redox Titration is a laboratory method of determining the concentration of a given analyte by causing a redox reaction between the titrant and the analyte. These types of titrations sometimes require the use of a potentiometer or a redox indicator.

2.A redox titration (also called an oxidation-reduction titration) can accurately determine the concentration of an unknown analyte by measuring it against a standardized titrant. It is used for the analysis of organic analytes.

3. As uring titration ,oxidation occur on one of the species and reduction on the other species, making it redox reaction and thus redox titration.