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JEE Main202126 Feb 2021Morning ShiftChemistryGeneral Organic ChemistryActual

Which of the following is a FALSE statement?

Options

  1. ACarius tube is used in the estimation of sulphur in an organic compound.
  2. BPhosphoric acid produced on oxidation of phosphorus present in an organic compound is precipitated as Mg 2 P 2
  3. CCarius method is used for the estimation of nitrogen in an organic compound.
  4. DKjeldahl's method is used for the estimation of nitrogen in an organic compound.

Correct answer

C. Carius method is used for the estimation of nitrogen in an organic compound.

Step-by-step solution

Carius method is used in the estimation of halogen in organic compounds. Carius method involves the conversion of the halogen present in the organic compound into the corresponding silver halide. From the mass of the organic compound taken and the mass of silver halide formed, the percentage of halogen in the compound can be calculated. Sulphur present in any organic compound is also estimated by Carius method.

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