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Chapter 3: Problem 198

Column I \(\quad\) Column II (a) Salicylic acid (p) characteristic colour with neutral \(\mathrm{FeCl}_{3}\) solution (b) \(\mathrm{p}\) -Hydroxy acetophenone (q) Kolbe's reaction (c) Quinol (r) Fries rearrangement (d) picric acid (s) Elbs persulphate oxidation (t) Decomposes \(\mathrm{NaHCO}_{3}\) solution

Short Answer

Expert verified
Question: Match the characteristic properties of the given compounds: (a) Salicylic acid (b) p-Hydroxy acetophenone (c) Quinol (d) Picric acid Answer: (a) Salicylic acid - Decomposes \(\mathrm{NaHCO}_{3}\) solution (b) p-Hydroxy acetophenone - Fries rearrangement (c) Quinol - Elbs persulphate oxidation (d) Picric acid - Characteristic colour with neutral \(\mathrm{FeCl}_{3}\) solution

Step by step solution

01

Identify the characteristic property of Salicylic acid

Salicylic acid is a phenolic compound containing a -COOH group. The presence of a -COOH group allows it to decompose \(\mathrm{NaHCO}_{3}\) solution, releasing \(\mathrm{CO}_{2}\). Therefore, the correct match for Salicylic acid is (t) Decomposes \(\mathrm{NaHCO}_{3}\) solution.
02

Identify the characteristic property of p-Hydroxy acetophenone

p-Hydroxy acetophenone is a phenolic compound, which undergoes Fries rearrangement when treated with a Lewis acid like \(\mathrm{AlCl}_{3}\). Therefore, the correct match for p-Hydroxy acetophenone is (r) Fries rearrangement.
03

Identify the characteristic property of Quinol

Quinol is also known as hydroquinone, which is a dihydroxy aromatic compound. Its characteristic property is to undergo Elbs persulphate oxidation, in which hydroquinone is oxidized to quinone. Therefore, the correct match for Quinol is (s) Elbs persulphate oxidation.
04

Identify the characteristic property of Picric acid

Picric acid is a trinitrophenol compound having a phenolic -OH group. It forms a characteristic color with a neutral \(\mathrm{FeCl}_{3}\) solution due to the formation of a charge-transfer complex. Therefore, the correct match for Picric acid is (p) characteristic colour with neutral \(\mathrm{FeCl}_{3}\) solution. Hence, the matching is as follows: (a) Salicylic acid - (t) Decomposes \(\mathrm{NaHCO}_{3}\) solution (b) p-Hydroxy acetophenone - (r) Fries rearrangement (c) Quinol - (s) Elbs persulphate oxidation (d) Picric acid - (p) characteristic colour with neutral \(\mathrm{FeCl}_{3}\) solution

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Most popular questions from this chapter

The compound (A) when treated with methanol and few drops of conc.H \(_{2} \mathrm{SO}_{4}\) gives the smell of oil of winter green. The compound (A) is (a) phenol (b) benzene (c) \(\mathrm{p}\) -cresol (d) salicylic acid

When phenol is treated with ethylene oxide in presence of acid the major product is

Which of the following reagents cannot be used to distinguish between benzyl alcohol and phenol? (a) \(\mathrm{FeCl}_{3}\) (b) \(\mathrm{NaOH}\) (aqueous) (c) \(\mathrm{Br}_{2} / \mathrm{CCl}_{4}\) (d) \(\mathrm{NaHCO}_{3}\) solution

Phenol is less acidic than (a) water (b) ethanol (c) p-nitrophenol (d) p-methoxyphenol

The increasing order of acid strength of 4-Methoxyphenol (I), 4Nitrophenol (II) and 4-Methylphenol (III) is (a) \(\mathrm{III}<\mathrm{I}<\mathrm{II}\) (b) \(\mathrm{I}<\mathrm{II}<\mathrm{III}\) (c) \(I<\mathrm{III}<\mathrm{II}\) (d) \(\mathrm{III}<\mathrm{II}<\mathrm{I}\)
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