How is O3 estimated quantitatively? | Class 12 Chemistry Chapter The p-Block Elements, The p-Block Elements NCERT Solutions

Question:

How is O₃estimated quantitatively?

Answer:

Quantitatively, ozone can be estimated with the help of potassium iodide. When ozone is made to react with potassium iodide solution buffered with a borate buffer (pH 9.2), iodine is liberated. This liberated iodine can be titrated against a standard solution of sodium thiosulphate using starch as an indicator. The reactions involved in the process are given below.

2I^- + H₂O + O₃ → 2OH^- + I₂ + O₂

Iodide Ozone Iodine

I₂ + 2Na₂S₂O₃ → Na₂S₄O₆ + NaI

Sodium Sodium

thiosulphate tetrathionate

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Popular questions of class 12 Chemistry

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Comments

Sandeepkumarrohit
2020-01-03 20:59:06

Do you have your own app for all subjects?

RPS
2019-10-22 05:41:44

weight of sodium iodide obtained is equal to weight reacted

Lokesh
2019-06-16 17:48:33

Its nice but how the quantity estimate by this??

Ghas
2019-05-17 23:41:19

Nice

Emmy mahiya
2019-02-21 17:04:50

Oh yes this is the mistake that I have doneð¶ð¶

Kuldeep
2019-02-13 12:32:34

I got, thanks

deepak pareek
2019-01-24 22:05:37

bhai kuch na smjh aaya

Manirul isalm
2019-01-22 10:36:50

Nice

Manirul isalm
2019-01-22 10:36:14

Nice. I understand clearly

Alfin
2018-12-13 10:38:26

GREAT IT'S HELP FULL..... BUT HOW THE QUANTITY ESTIMATE BY THIS?

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Welcome to the NCERT Solutions for Class 12 Chemistry - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 19: How is O3 estimated quantitatively?....

How is O3 estimated quantitatively? | Class 12 Chemistry Chapter The p-Block Elements, The p-Block Elements NCERT Solutions

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