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  • Which method is used for the estimation of Phosphorous in organic compounds ?Option: 1 Duma's method<strong

Which method is used for the estimation of Phosphorous in organic compounds ?

Option: 1

Duma's method


Option: 2

Liebig's method


Option: 3

Kjeldahl's method


Option: 4

Carius method


Answers (1)

best_answer

The amount of phosphorus present in any organic compound is determined by the Carius method.

Principle: The phosphorus present in an organic compound is oxidized to phosphoric acid by heating with fuming nitric acid. The phosphoric acid so obtained is precipitated as \mathrm{MgNH_{4}PO_{4}} which on ignition is converted into \mathrm{Mg_{2}P_{2}O_{7}}. From the mass of \mathrm{Mg_{2}P_{2}O_{7}}, the mass of phosphorus present in the sample of the organic compound can be calculated.

Hence, the correct answer is Option (4)

Posted by

Kuldeep Maurya

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