eysine
famino acide
" I u
1) Peng
21
Distinguish
between un
indiffere enliate a
cells and differentiaud ale
Nane awo maine
Answers
Answered by
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Explanation:
These can be distinguished by the carbylamine test. Ethylamine is primary (1
o
) amine therefore, it gives carbylamine test i.e., when heated with an alcoholic solution of KOH and CHCl
3
, it givers an unpleasant foul smell of isocyanide which is easily detectable.
C
2
H
5
NH
2
+CHCl
3
+alc.KOH⟶
Ethylisocyanide
C
2
H
5
NC
+3KCl+3H
2
O
On the other hand, diethylamine is a secondary (2
o
) amine and hence does not give this test.
(ii) When acetaldehyde is heated with Fehling's solution, red precipitate of cuprous oxide is formed
Acetaldehyde
CH
3
CHO
+
↓Fehling
′
ssolution
2CuO
⟶
(Redppt.)
Cu
2
O(s)↓
+CH
3
COOH
On th eother hand, benzaldehyde does not give red precipitate with Fehling's solution
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