CUSAT 2021 BTech Solved Paper Shift 1

Question : 111 of 250

Marks: +1, -0

If the sodium fusion extract of an organic compound gives violet colour upon treatment with sodium nitroprusside, then which of the following statement is correct?

Nitrogen is present in the compound and the violet colour is due to the formation of [Fe(CN)6]4−
Both nitrogen and bromine are present in the compound and the violet colour is due to the formation of (NH4)2MoO4
Sulfur is present in the compound and the violet colour is due to the formation of [Fe(CN)5‌NOS]4
Both nitrogen and sulfur are present in the compound and the violet colour is due to the formation of [Fe(SCN)]2+

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