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

In the detection of carbon and hydrogen,the organic compound is heated with which of the following?

Match column $-I$ and column $-II$ with the correct relation:

Column $-I$	Column $-II$
$(i).$ Prussian blue	$(a).$ Presence of phosphorus
$(ii).$ Yellow precipitate	$(b).$ Presence of sulphur
$(iii).$ Purple solution	$(c).$ Presence of nitrogen
$(iv).$ Black precipitate	$(d).$ Presence of chlorine

Discuss the chemistry of Lassaigne's test.

Given below are two statements :
Statement $I :$ In Lassaigne's test,the covalent organic molecules are transformed into ionic compounds.
Statement $II :$ The sodium fusion extract of an organic compound having $N$ and $S$ gives prussian blue colour with $FeSO_4$ and $FeCl_3$.
In the light of the above statements,choose the correct answer from the options given below.

In $Lassaigne's$ test,the organic compound is fused with $Na$ metal followed by extraction with distilled water. Which of the following is not a possible product of this fusion reaction?