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प्रश्न
Out of CH3CH2 – CO – CH2 – CH3 and CH3CH2 – CH2 – CO – CH3, which gives iodoform test?
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उत्तर १
CH3CH2 – CH2 –CO –CH3
उत्तर २
Pentan-2-one (CH3-CH2-CH2-CO-CH3) give yellow precipitate of CHI3 with NaOI, thats means it gives iodoform test.

Pentan-3-one (CH3-CH2-CO-CH2-CH3) does not give yellow precipitate with CHI3 with NaOI, so Pentan-3-one does not give iodoform test.
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संबंधित प्रश्न
Distinguish between: CH3COOH and HCOOH
Propanal and Propanone
Give a simple chemical test to distinguish between the following pair of compounds:
Benzaldehyde and Acetophenone
An organic compound contains 69.77% carbon, 11.63% hydrogen and rest oxygen. The molecular mass of the compound is 86. It does not reduce Tollens’ reagent but forms an addition compound with sodium hydrogensulphite and give positive iodoform test. On vigorous oxidation it gives ethanoic and propanoic acid. Write the possible structure of the compound.
Complete the synthesis by giving missing starting material, reagent or product.

Write chemical test to distinguish between the following compounds:
Phenol and Benzoic acid

Which among the above compound/s does/do not form Silver mirror when treated with Tollen's reagent?
Choose the reaction which is not possible:
In Tollen's test for aldehyde, the overall number of electrons(s) transferred to the Tollen's reagent formula \[\ce{[Ag(NH3)2]+}\] per aldehyde group to form silver mirror is ______. (Round off to the nearest integer)
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:





