Which of the following organic compounds will give red colour in Lasasaisne test-
1
NaCNS
2
\(\begin{array}{*{20}{c}} S\\ {||}\\ {{H_2}N - C - N{H_2}} \end{array}\)
3
\(\begin{array}{*{20}{c}} O\\ {||}\\ {{H_2}N - C - N{H_2}} \end{array}\)
4
Both 1 and 2
5
Not Attempted