Question

Baeyer’s reagent is:
(a) acidified potassium dichromate
(b) alkaline potassium dichromate
(c) alkaline potassium permanganate
(d) acidified potassium permanganate

Answer 1

Hint: Baeyer’s reagent is a strong oxidising agent and it is a violet coloured solution. This is used in many reactions and used in the titrations also. The oxidising power of Baeyer’s reagent is good.

Complete step by step answer:
Baeyer’s reagent is an important inorganic compound with a chemical formula of ${\text{KMn}}{{\text{O}}_{\text{4}}}$. The compound is made up of ${K^ + }$ and $Mn{O_4}^ - $ and also it is a purple black crystalline solid. It will dissolve in water to give an intense violet or purple colour.

Baeyer’s reagent is an alkaline solution of potassium permanganate. So, the correct option for this question is (c).

Additional Information:
1. The main use of Baeyer’s reagent is in industry and chemical laboratories as oxidising agents for reactions.
2. It can be used for medication purposes as well as for cleaning wounds and for general disinfection.Because its high oxidising power potassium permanganate will not generate byproducts in the reactions.
3. Potassium permanganate is used in water treatment processes in which they can remove iron and hydrogen sulphide from well water.

Note: You can note the other importance of Baeyer’s reagent as well. Baeyer’s reagent is used as a main reagent for the synthesis of many organic compounds. The important use of Baeyer’s reagent is used in qualitative analysis for the test of unsaturation. The Baeyer’s reagent got its name from the German chemist Adolf Von Baeyer.