Question

Which of the following oxidise $Kl$ to $Kl{O_3}$
1. $KMn{O_4}/{H^ + }$
2. $KMn{O_4}/O{H^ - }$
3. ${K_2}C{r_2}{O_7}/{H^ + }$
4. $Mn{O_2}$

Answer 1

Hint : In order to answer this question we will first mention the compound name which helps $KI$ to $KI{O_3}$ . Then we will also write the balanced reaction to show how $KI$ oxidises to $KI{O_3}$ with the particular compound .

Complete Step By Step Answer:
The chemical compound potassium permanganate is made up of manganese oxide ore and potassium hydroxide. Potassium permanganate is a crystalline solid with a purplish tint. Non-combustible, yet helps combustible materials burn faster. The mixture may be explosive if the flammable element is finely separated. Spontaneous ignition can occur when liquid combustible elements come into contact with them. Sulfuric acid can generate a fire or an explosion if it comes into contact with it. It's a chemical that's used to manufacture other compounds as well as a disinfectant.
The oxidising characteristics of potassium permanganate are used in almost every application $KMn{O_4}$ has a variety of applications as a powerful oxidant that does not produce harmful by-products.
Potassium permanganate is a medicine used to treat a variety of skin diseases. Impetigo, pemphigus, superficial wounds, dermatitis, and tropical ulcers are examples of fungal infections of the foot. It's combined with procaine benzylpenicillin for tropical ulcers.
Potassium permanganate can oxidise $KI$ to $KI{O_3}$ in the presence of a basic medium. $KMn{O_4}$ reduces to $Mn{O_2}$ and oxidises $KI$ to $KI{O_3}$ .
The reaction is as follows:
$2KMn{O_4} + {H_2}O + KI \to 2Mn{O_2} + 2KOH + 2KI{O_3}$ .
So, the correct option is (2) $KMn{O_4}/O{H^ - }$ .

Note :
Potassium salt of permanganic acid $\left( {HMn{O_4}} \right)$ . Purple crystals and a pleasant taste characterise this highly oxidative, water-soluble chemical. The manganese oxoanion hydrogen manganate is made up of manganic acid with one of the two $OH{\text{ - }}groups$ deprotonated. It is a monovalent inorganic anion and a manganese oxoanion. It's a manganic acid conjugate base.