The quantitative estimation of O_3 is based o | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The quantitative estimation of $O_3$ is performed by passing it through a neutral solution of potassium iodide $(KI)$ buffered with a borate buffe

Vedclass · Accepted Answer

Its reaction with $KI$ and titration of $I_2$ liberated with sodium thiosulphate

Vedclass · Answer

(C) The quantitative estimation of $O_3$ is performed by passing it through a neutral solution of potassium iodide $(KI)$ buffered with a borate buffer $(pH = 9.2)$.$O_3$ reacts with $KI$ to liberate $I_2$ according to the reaction: $2I^{-} + H_2O + O_3 	o 2OH^{-} + I_2 + O_2$.The liberated $I_2$ is then titrated against a standard solution of sodium thiosulphate $(Na_2S_2O_3)$ using starch as an indicator: $I_2 + 2Na_2S_2O_3 	o Na_2S_4O_6 + 2NaI$.

The quantitative estimation of $O_3$ is based on

Similar Questions

Which of the following molecules exists as a cyclic trimer in the solid state?

Write a preparation of dioxygen. Explain the physical and chemical properties of dioxygen. State uses of dioxygen.

Although oxygen is more electronegative than sulfur,$H_2S$ is acidic while $H_2O$ is neutral. This is because ..........

Sodium thiosulphate is formed when

Bleaching action of $SO_2$ is due to its

Vedclass Test Series

Exam Paper Generator

Online Exam Module