MCQ
The most appropriate reagent to distinguish between acetaldehyde and formaldehyde is
- AFehling's solution
- BTollen's reagent
- CSchiff's reagent
- ✓Iodine in presence of base
✓
Answer
Correct option: D.
Iodine in presence of base
d
(d) Acetaldehyde have $C{H_3}CO - $ group so it give positive iodoform test with ${I_2}$ and $NaOH$ while formaldehyde does not have $ - C{H_3}CO$ group so it will not give the positive haloform test.
(d) Acetaldehyde have $C{H_3}CO - $ group so it give positive iodoform test with ${I_2}$ and $NaOH$ while formaldehyde does not have $ - C{H_3}CO$ group so it will not give the positive haloform test.
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