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Which is the oxidizing agent used in the test for phosphorous?

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in Chemistry – Class 11 by (148k points)
Which is the oxidizing agent used in the test for phosphorous?

(a) Hydrogen peroxide

(b) Potassium nitrate

(c) Sodium peroxide

(d) Nitric acid

The question was posed to me in class test.

This intriguing question originated from Qualitative Analysis of Organic Compounds in portion Organic Chemistry – Basic Principles and Technique of Chemistry – Class 11

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The correct option is (c) Sodium peroxide

Explanation: The phosphorous present in the organic compound is oxidized to phosphate by the oxidizing agent sodium peroxide. This solution is then boiled with nitric acid and treated with ammonium molybdate. As a result, a yellow precipitate is formed, indicating the presence of phosphorous.

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