JEE Main Chemistry question

Chemistry Principles Related to Practical Chemistry JEE Main

During the AgNO₃ test for detection of halogens, the sodium extract is boiled with a few drops of conc. HNO₃ to decompose

(A)NaCN
(B)Na₂S
(C)Both (A) and (B)Correct
(D)None of these

Answer: (C)

Solution

Boiling with conc. HNO₃ destroys any NaCN and Na₂S present, which would

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Question ID VK-139543