Describe the test that would distinguish between Butanoic acid and hexane
Answers
Answer:
Acetic acid being acidic reacts with carbonates or bicarbonates to give brisk effervescence due to the evolution of carbondioxide whereas ethanol does not react.
CH3COOH+Na2CO3→CH3COONa+H2O+CO2↑
(ii) Fehling's solution test is used to distinguish between acetaldehyde and benzaldehyde as:
acetaldehyde gives red precipitate of cuprous oxide while benzaldehyde does not.
CH3CHO+5OH−+2Cu2+→CH3COO−+Cu2O↓+3H2
Answer:
(i)Acetic acid being acidic reacts with carbonates or bicarbonates to give brisk effervescence due to the evolution of carbondioxide whereas ethanol does not react.
CH
3
COOH+Na
2
CO
3
→CH
3
COONa+H
2
O+CO
2
↑
(ii) Fehling's solution test is used to distinguish between acetaldehyde and benzaldehyde as:
acetaldehyde gives red precipitate of cuprous oxide while benzaldehyde does not.
CH
3
CHO+5OH
−
+2Cu
2+
→CH
3
COO
−
+Cu
2
O↓+3H
2
O