Why is the test for nitrogen,sulphur,or halog | vedclass

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(B) In organic compounds,elements like nitrogen,sulphur,and halogens are covalently bonded to the carbon skeleton. Because they are not present as fre

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They are covalently bonded to the carbon skeleton.

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(B) In organic compounds,elements like nitrogen,sulphur,and halogens are covalently bonded to the carbon skeleton. Because they are not present as free ions,they do not react directly with reagents to give characteristic ionic tests. Therefore,the organic compound is fused with sodium metal to convert these covalent elements into their corresponding water-soluble ionic salts (e.g.,$NaCN$,$Na_2S$,$NaCl$),which can then be detected using standard reagents.

Test	Inference
$a$. Dil. $HCl$	Insoluble
$b$. $NaOH$ solution	Soluble
$c$. $Br_2/\text{water}$	Decolourization

Why is the test for nitrogen,sulphur,or halogens not carried out by the direct addition of reagents to an organic compound?

Similar Questions

The organic compound that gives the following qualitative analysis is:

Test Inference

$a$. Dil. $HCl$ Insoluble

$b$. $NaOH$ solution Soluble

$c$. $Br_2/\text{water}$ Decolourization

Nitrogen can be estimated by Kjeldahl's method for which of the following compounds?

Why is nitric acid $(HNO_3)$ added to sodium extract before adding silver nitrate $(AgNO_3)$ for testing halogens?

Why is the Lassaigne's extract boiled with concentrated $HNO_3$ before testing for halogens?

What can be inferred if a blood-red color is obtained in the Lassaigne's test?

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