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JEE · NEET Previous Year Question

$During halogen test, sodium fusion extract is boiled with concentrated H N O_{3} to$

Topic: JEE PYQ

Answer: B. Full step-by-step solution below.

A $remove unreacted sodium$
B $decompose cyanide or sulphide of sodium$
C $extract halogen from organic compound$
D $maintain the pH of extract$

Correct answer: B

Solution

(b) Sodium fusion extract is boiled with concentrated H N O_{3} to remove sodium cyanide and sodium sulphide

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