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Question
Chemistry
The compound that gives both iodoform and Fehling's tests is
Q. The compound that gives both iodoform and Fehling's tests is
2238
150
J & K CET
J & K CET 2011
Aldehydes Ketones and Carboxylic Acids
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A
ethanol
11%
B
propanone
13%
C
2-butanol
14%
D
ethanal
61%
Solution:
Ethanal gives both iodoform and Fehling's tests
C
H
3
C
H
O
+
blue
2
C
u
2
+
+
3
O
H
−
Δ
Fehing test
C
H
3
CO
O
−
+
red ppt.
2
C
u
+
↓
+
2
H
2
O
C
H
3
C
H
O
+
3
I
2
+
4
N
a
O
H
Δ
Iodoform test
Iodoform
C
H
3
I
↓
+
H
COON
a
+
3
N
a
I
+
3
H
2
O