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.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
When succinic acid is heated, product formed is
Select the correct statement among following
The secondary battery is such a battery:
Contents of three bottles were found to react
→$(i)$ Neither with Fehling's solution nor with Tollen's reagent
$(ii)$ Only with Tollen's reagent but not with Fehling's solution
$(iii)$ With both Tollen's reagent and Fehling's solution. If they contained either ethanal (acetaldehyde) or propanone (acetone) or benzal (benzaldehyde), which bottle contained which
The pair of lanthanides in which both elements have high third-ionization energy is:
Ethyl amine on acetylation gives
Which of the following complex is octahedral, diamagnetic and the most stable?
Ionisation of which of the following will be maximum in water
Products of the reaction are
Hydroxide soluble in ammonia is