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प्रश्न
Give a simple chemical test to distinguish between the following pair of compounds:
Acetophenone and Benzophenone
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उत्तर
Acetophenone gives iodoform test, but benzophenone does not.
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संबंधित प्रश्न
Give a simple chemical test to distinguish between the following pair of compounds :
CH3CH2CHO and CH3CH2COCH3
Give a simple chemical test to distinguish between the following pair of compounds:
Phenol and Benzoic acid
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.
Which of the following compounds will give butanone on oxidation with alkaline \[\ce{KMnO4}\] solution?
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?
Acetone and acetaldehyde are differentiated by
Acetaldehyde cannot show?
Which of the following tests/reactions is given by aldehydes as well as ketones?
A hydrocarbon (A) with molecular formula C5H10 on ozonolysis gives two products (B) and (C). Both (B) and (C) give a yellow precipitate when heated with iodine in presence of NaOH while only (B) give a silver mirror on reaction with Tollen’s reagent.
- Identify (A), (B) and (C).
- Write the reaction of B with Tollen’s reagent.
- Write the equation for iodoform test for C.
- Write down the equation for aldol condensation reaction of B and C.
Write chemical test to distinguish between the following compounds:
Phenol and Benzoic acid
What is the composition of Fehling's reagent?
Which among the above compound/s does/do not form Silver mirror when treated with Tollen's reagent?
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)
An organic compound 'A' with molecular formula C5H8O2 is reduced to n-pentane with hydrazine followed by heating with NaOH and glycol. 'A' forms a dioxime with hydroxylamine and gives a positive iodoform and Tollen's test. Identify 'A' and give its reaction for iodoform and Tollen's test.
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 ______.
