Question

289 How many of the following gives characteistic
colour cor) precipitate with nutral Fede soein?
OH 애
CHO
OH
OH
au
c)
CH₂
d)
O
OH to​

Answer 1

Answer:

Hydrozine, NH

2

−NH

2

does not respond to Lassaigne's test because it does not contain any carbon and hence, NaCN is not formed.

Compound NH

2

−

∥S

C

−NH

2

contains both N and S, hence it will give red colour in Lassaigne test.