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In the detection of halogen, nitric acid...

In the detection of halogen, nitric acid is added to the Lassaigne's extract. Its main function is to :

A

oxidise the solution

B

destroy NaCN and `Na_(2)S` which otherwise interfere in the test

C

make the reaction fast

D

provide a medium for the precipitation

Text Solution

Verified by Experts

The correct Answer is:
B
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