Year: 2023
Topic: Organic Chemistry – Some Basic Principles and Techniques
Time :
1.
In Lassaigne's extract of an organic compound, both nitrogen and sulphur are present, which gives blood red colour with Fe
3+
due to the formation of
(1). NaSCN
(2). [Fe(CN)
5
NOS]
4-
(3). [Fe(SCN)]
2+
(4). Fe[Fe(CN)
6
]
3
. xH
2
O