The sodium fusion extract is first boiled with concentrated nitric acid to decompose cyanide or sulphide of sodium formed during Lassaigne's test. These ions would otherwise interfere with silver nitrate test for halogens.
During halogen test, sodium fusion extract is boiled with concentrated HNO_3 to
JEE Main 2022 — Chemistry Organic Chemistry
During halogen test, sodium fusion extract is boiled with concentrated HNO3 to
Held on 25 Jun 2022 · Verified 6 Jul 2026.
Options
- A
remove unreacted sodium
- B
decompose cyanide or sulphide of sodium
- C
extract halogen from organic compound
- D
maintain the pH of extract.
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