{"id":87049,"date":"2025-06-01T04:27:04","date_gmt":"2025-06-01T04:27:04","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=87049"},"modified":"2025-06-01T04:27:04","modified_gmt":"2025-06-01T04:27:04","slug":"which-one-of-the-following-products-is-formed-by-the-oxidation-of-phen","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-products-is-formed-by-the-oxidation-of-phen\/","title":{"rendered":"Which one of the following products is formed by the oxidation of phen"},"content":{"rendered":"

Which one of the following products is formed by the oxidation of phenol with chromic acid?<\/p>\n

[amp_mcq option1=”1,4-Benzoquinone” option2=”1,2-Benzoquinone” option3=”Benzoic acid” option4=”Diphenyl ether” correct=”option1″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC Geoscientist – 2023<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe correct answer is 1,4-Benzoquinone.
\n<\/section>\n
\nPhenol can be oxidized to quinones. Chromic acid (H\u2082CrO\u2084), typically generated in situ from K\u2082Cr\u2082O\u2087 or CrO\u2083 in acidic solution, is a strong oxidizing agent. Oxidation of phenol with strong oxidizing agents like chromic acid generally results in the formation of p-benzoquinone (1,4-benzoquinone). The hydroxyl group is oxidized, and the aromatic ring is modified to form a conjugated cyclic diketone structure.
\n<\/section>\n
\n1,2-Benzoquinone (o-benzoquinone) is usually formed by milder oxidation methods, such as using Fremy’s salt. Benzoic acid involves cleavage of the ring, which is not the primary product of phenol oxidation with chromic acid under typical conditions. Diphenyl ether (C\u2086H\u2085OC\u2086H\u2085) is formed through a different type of reaction involving phenol, not simple oxidation.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following products is formed by the oxidation of phenol with chromic acid? [amp_mcq option1=”1,4-Benzoquinone” option2=”1,2-Benzoquinone” option3=”Benzoic acid” option4=”Diphenyl ether” correct=”option1″] This question was previously asked in UPSC Geoscientist – 2023 Download PDFAttempt Online The correct answer is 1,4-Benzoquinone. Phenol can be oxidized to quinones. Chromic acid (H\u2082CrO\u2084), typically generated in situ … <\/p>\n

Detailed SolutionWhich one of the following products is formed by the oxidation of phen<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1091],"tags":[1105,1096,1272],"class_list":["post-87049","post","type-post","status-publish","format-standard","hentry","category-upsc-geoscientist","tag-1105","tag-chemistry","tag-organic-chemistry","no-featured-image-padding"],"yoast_head":"\nWhich one of the following products is formed by the oxidation of phen<\/title>\n<meta name=\"description\" content=\"The correct answer is 1,4-Benzoquinone. Phenol can be oxidized to quinones. Chromic acid (H\u2082CrO\u2084), typically generated in situ from K\u2082Cr\u2082O\u2087 or CrO\u2083 in acidic solution, is a strong oxidizing agent. Oxidation of phenol with strong oxidizing agents like chromic acid generally results in the formation of p-benzoquinone (1,4-benzoquinone). The hydroxyl group is oxidized, and the aromatic ring is modified to form a conjugated cyclic diketone structure.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-products-is-formed-by-the-oxidation-of-phen\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which one of the following products is formed by the oxidation of phen\" \/>\n<meta property=\"og:description\" content=\"The correct answer is 1,4-Benzoquinone. Phenol can be oxidized to quinones. Chromic acid (H\u2082CrO\u2084), typically generated in situ from K\u2082Cr\u2082O\u2087 or CrO\u2083 in acidic solution, is a strong oxidizing agent. Oxidation of phenol with strong oxidizing agents like chromic acid generally results in the formation of p-benzoquinone (1,4-benzoquinone). The hydroxyl group is oxidized, and the aromatic ring is modified to form a conjugated cyclic diketone structure.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-products-is-formed-by-the-oxidation-of-phen\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T04:27:04+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Which one of the following products is formed by the oxidation of phen","description":"The correct answer is 1,4-Benzoquinone. Phenol can be oxidized to quinones. Chromic acid (H\u2082CrO\u2084), typically generated in situ from K\u2082Cr\u2082O\u2087 or CrO\u2083 in acidic solution, is a strong oxidizing agent. Oxidation of phenol with strong oxidizing agents like chromic acid generally results in the formation of p-benzoquinone (1,4-benzoquinone). The hydroxyl group is oxidized, and the aromatic ring is modified to form a conjugated cyclic diketone structure.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-products-is-formed-by-the-oxidation-of-phen\/","og_locale":"en_US","og_type":"article","og_title":"Which one of the following products is formed by the oxidation of phen","og_description":"The correct answer is 1,4-Benzoquinone. Phenol can be oxidized to quinones. Chromic acid (H\u2082CrO\u2084), typically generated in situ from K\u2082Cr\u2082O\u2087 or CrO\u2083 in acidic solution, is a strong oxidizing agent. Oxidation of phenol with strong oxidizing agents like chromic acid generally results in the formation of p-benzoquinone (1,4-benzoquinone). The hydroxyl group is oxidized, and the aromatic ring is modified to form a conjugated cyclic diketone structure.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-products-is-formed-by-the-oxidation-of-phen\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T04:27:04+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-products-is-formed-by-the-oxidation-of-phen\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-products-is-formed-by-the-oxidation-of-phen\/","name":"Which one of the following products is formed by the oxidation of phen","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T04:27:04+00:00","dateModified":"2025-06-01T04:27:04+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The correct answer is 1,4-Benzoquinone. Phenol can be oxidized to quinones. Chromic acid (H\u2082CrO\u2084), typically generated in situ from K\u2082Cr\u2082O\u2087 or CrO\u2083 in acidic solution, is a strong oxidizing agent. Oxidation of phenol with strong oxidizing agents like chromic acid generally results in the formation of p-benzoquinone (1,4-benzoquinone). 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