The Lassaigne's extract is boiled with dil HNO_3 before testing for halogens because

MHT CET Chemistry question

The Lassaigne's extract is boiled with dil before testing for halogens because

Answer: (C)

Any NaCN and present would also precipitate with and interfere, so they are destroyed as HCN and by boiling with

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Question ID VK-076652