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प्रश्न
Match the structures of the compounds given in Column I with the name of the compounds given in Column II.
| Column I | Column II | |
| (i) |  |
(a) Hydroquinone |
| (ii) |  |
(b) Phenetole |
| (iii) |  |
(c) Catechol |
| (iv) |  |
(d) o-Cresol |
| (v) |  |
(e) guinone |
| (vi) |  |
(f) Resorcinol |
| (g) Anisole |
उत्तर
| Column I | Column II | |
| (i) | |
(d) o-Cresol |
| (ii) | |
(c) Catechol |
| (iii) | |
(f) Resorcinol |
| (iv) | |
(a) Hydroquinone |
| (v) | |
(g) Anisole |
| (vi) | |
(b) Phenetole |
Explanation:
(i) Cresols are organic compounds which are methyl phenols. There are three forms of cresol: o-cresol, p-cresol and m-cresol.
(ii) Catechol is also known as pyrocatechol. Its IUPAC name is 1, 2-dihydrobenzene. It is used in the production of pesticides, perfumes and pharmaceuticals.
(iii) Its IUPAC name is 1, 3-dihydroxybenzene. Resorcinol is used to treat acne, seborrheic dermatitis and other skin disorder.
(iv) Hydroquinone is also known as quinol. Its IUPAC name is 1, 4-dihydroxybenzene. It is a white granular solid. It is a good reducing agent.
(v) Anisole or methoxy benzene, is a colourless liquid with a smell reminiscent of an anise seed.
(vi) Phenetole is an organic compound. It is also known as ethyl phenyl ether. It is volatile in nature and its vapour is explosive in nature.
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संबंधित प्रश्न
Write the IUPAC name of the given compound:
Write IUPAC name of the following compound:
\[\begin{array}{cc}
\ce{CH3 - CH - CH - CH3}\\
|\phantom{......}|\phantom{..}\\
\ce{OH}\phantom{...}\ce{OH}\phantom{}
\end{array}\]
Write IUPAC name of the following compound:
\[\begin{array}{cc}
\ce{CH3 - CH2 - O - CH - CH2 - CH3}\\
\phantom{...}|\\
\phantom{.....}\ce{CH3}
\end{array}\]
Give IUPAC name of the following ether:
O2N – C6H4 – OCH3(p)
Write the structure and IUPAC name of 'methyl-n-propyl ether'.
Write the structures of the products when Butan-2-ol reacts with CrO3
Write IUPAC names of the following
The IUPAC name of the ether CH2 = CH–CH2OCH3 is:
\[\ce{Phenol ->[Zn, dust] 'X' ->[CH3Cl][Anhy. AlCl3] 'Y' ->[Alkaline][KMnO4] 'Z'}\]
The product ‘Z’ is:
Assertion: Phenols give o- and p-nitrophenol on nitration with conc. \[\ce{HNO3}\] and \[\ce{H2SO4}\] mixture.
Reason: –OH group in phenol is o–, p– directing.
