Which of the following compounds will give a | vedclass

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(B) Lassaigne's test is used to detect elements like nitrogen,sulfur,and halogens in organic compounds.For a positive test,the compound must contain c

Vedclass · Accepted Answer

$CH_3NH_2 \cdot HCl$

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(B) Lassaigne's test is used to detect elements like nitrogen,sulfur,and halogens in organic compounds.For a positive test,the compound must contain carbon along with nitrogen and halogen to form sodium cyanide $(NaCN)$ and sodium halide $(NaX)$ upon fusion with sodium metal.$CH_3NH_2 \cdot HCl$ is an organic compound containing carbon,nitrogen,and chlorine.Upon fusion with sodium $(Na)$,it forms $NaCN$ (which gives a positive test for nitrogen) and $NaCl$ (which gives a positive test for halogen).$N_2H_4 \cdot HCl$,$NH_4Cl$,and $NH_2OH \cdot HCl$ are inorganic compounds that do not contain carbon,hence they do not form $NaCN$ during the fusion process.

Which of the following compounds will give a positive Lassaigne's test for both nitrogen and halogen?

Similar Questions

In the detection of halogens,what is formed by adding $AgNO_3$? What is its colour?

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Assertion: Potassium can be used in the Lassaigne test.
Reason: Potassium reacts vigorously.

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

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