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The hetero elements in organic compound ...

The hetero elements in organic compound are nitrogen, halogen, sulphur and phosphorousd, Nitrogen is estimated by Duma's method (or) Kjeldahl's method. The other hetero elements are estimated using Carius method.
The substance used in the estimation of phosphorous is

A

Conc. `H_2SO_4`

B

fuming sulphuric acid and `MgCl_2`

C

Conc. `HNO_3.NaOH`

D

fuming nitric acid and magnesia mixture

Text Solution

Verified by Experts

The correct Answer is:
D
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The hetero elements in organic compound are nitrogen, halogen, sulphur and phosphorousd, Nitrogen is estimated by Duma's method (or) Kjeldahl's method. The other hetero elements are estimated using Carius method. In the estimation of halogen by Carius method, which of the following is carried out

The hetero elements in organic compound are nitrogen, halogen, sulphur and phosphorousd, Nitrogen is estimated by Duma's method (or) Kjeldahl's method. The other hetero elements are estimated using Carius method. 0.25 g of an organic compound gave 22.4 ml. of N_(2) at STP by Duma's method. The percentage of Nitrogen in the compound is

How is nitrogen estimated by Kjeldahl's method

In Kjeldahl's method, the nitrogen presence is estimated as

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In carius method for the quantitative estimation of sulphur, it is estimated by