Advertisements
Advertisements
Question
Give a simple chemical test to distinguish between the following pair of compounds :
CH3CH2CHO and CH3CH2COCH3
Advertisements
Solution
2-Butanone has a methyl group attached to carbonyl carbon unlike propanal. Hence, it can give iodofom test.

RELATED QUESTIONS
Give a simple chemical test to distinguish between the following pair of compounds:
Benzoic acid and Ethyl benzoate
Complete the synthesis by giving missing starting material, reagent or product.

Alkenes decolourise bromine water in presence of CCl4 due to formation of ______.
Oxidation of ketones involves carbon-carbon bond cleavage. Name the products formed on oxidation of 2, 5-dimethylhexan-3-one.
Which sugar does not reduce Fehling's solution?
The reagent that can be used to distinguish acetophenone and benzophenone is ______.
An organic compound 'A' with the molecular formula C4H8O2 undergoes acid hydrolysis to form two compounds 'B' and 'C'. Oxidation of 'C' with acidified potassium permanganate also produces 'B'. Sodium salt of 'B' on heating with soda lime gives methane.
- Identify 'A', 'B' and 'C'.
- Out of 'B' and 'C', which will have higher boiling point? Give reason.
You are given four organic compounds “A”, “B” , “C” and “D”. The compounds “A”, “B” and “C” form an orange-red precipitate with 2, 4 DNP reagent. Compounds “A” and “B” reduce Tollen’s reagent while compounds “C” and “D” do not. Both “B” and “C” give a yellow precipitate when heated with iodine in the presence of NaOH. Compound “D” gives brisk effervescence with sodium bicarbonate solution. Identify “A”, “B”, “C” and “D” given the number of carbon atoms in three of these carbon compounds is three while one has two carbon atoms. Give an explanation for our answer.
Match List-I with List-II:
| List-I (Reaction) |
List-II (Reagents/Condition) |
||
| A. | ![]() |
I. | ![]() |
| B. | ![]() |
II. | CrO3 |
| C. | ![]() |
III. | KMnO4/KOH, Δ |
| D. | ![]() |
IV. | (i) O3 (ii) Zn-H2O |
Choose the correct answer from the options given below:
Fehling’s solution ‘A’ is ______.





