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JEE · NEET Previous Year Question

$Which one of the following set of elements can be detected using sodium fusion extract?$

Topic: JEE PYQ

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

A $Sulfur, Nitrogen, Phosphorous, Halogens$
B $Phosphorous, Oxygen, Nitrogen, Halogens$
C $Nitrogen, Phosphorous, Carbon, Sulfur$
D $Halogens, Nitrogen, Oxygen, Sulfur$

Correct answer: A

Solution

(a) By sodium fusion extract we can detect sulphur, nitrogen, Phosphorous and halogens, because they are converted in to their ionic form with sodium metal.

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