Tardigrade
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Tardigrade
Question
Chemistry
R-C ≡ N+2 (H ) ->[(i) Sncl2 / dil Hcl][(ii) H3O+] RCHO+NH4Cl this reaction is known as
Q.
R
−
C
≡
N
+
2
(
H
)
(
i
)
Sncl
X
2
/
dil
Hcl
(
ii
)
H
X
3
O
X
+
RC
H
O
+
N
H
4
Cl
this reaction is known as
2912
165
MHT CET
MHT CET 2015
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A
Etard reaction
B
Stephen reaction
C
Hell-Vohlard-Zelinsky reaction
D
Balz-Schiemann reaction
Solution:
When alkyl or aryl cyanide undergoes reduction in the presence of
S
n
C
l
2
/
d
i
l
.
H
Cl
followed by hydrolysis, forms aldehyde. This reaction is known as 'Stephen reaction'.
