{"id":19911,"date":"2024-04-15T05:45:53","date_gmt":"2024-04-15T05:45:53","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=19911"},"modified":"2024-04-15T05:45:53","modified_gmt":"2024-04-15T05:45:53","slug":"the-decreasing-order-of-acidity-of-the-marked-h-of-the-following-molecules-is-a-i-ii-iii-b-iii-i-ii-c-iii-ii-i-d-ii-i-iii","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-decreasing-order-of-acidity-of-the-marked-h-of-the-following-molecules-is-a-i-ii-iii-b-iii-i-ii-c-iii-ii-i-d-ii-i-iii\/","title":{"rendered":"The decreasing order of acidity of the marked H of the following molecules is A. I > II > III B. III > I > II C. III > II > I D. II > I > III"},"content":{"rendered":"<p>[amp_mcq option1=&#8221;I > II > III&#8221; option2=&#8221;III > I > II&#8221; option3=&#8221;III > II > I&#8221; option4=&#8221;II > I > III&#8221; correct=&#8221;option3&#8243;]<!--more--><\/p>\n<p>The correct answer is: C. III &gt; II &gt; I<\/p>\n<p>The acidity of a molecule is determined by the stability of the conjugate base. The more stable the conjugate base, the weaker the acid.<\/p>\n<p>In the given molecules, the conjugate bases are:<\/p>\n<ul>\n<li>I: $\\ce{R-CH2-COO-}$<\/li>\n<li>II: $\\ce{R-CH(OH)-COO-}$<\/li>\n<li>III: $\\ce{R-CH(NH2)-COO-}$<\/li>\n<\/ul>\n<p>The conjugate base of III is the most stable because it has the most resonance structures. The conjugate base of II is less stable because it has one less resonance structure. The conjugate base of I is the least stable because it has no resonance structures.<\/p>\n<p>Therefore, the acidity of the molecules decreases in the order III &gt; II &gt; I.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;I > II > III&#8221; option2=&#8221;III > I > II&#8221; option3=&#8221;III > II > I&#8221; option4=&#8221;II > I > III&#8221; correct=&#8221;option3&#8243;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-19911","post","type-post","status-publish","format-standard","hentry","category-basics-of-organic-reaction-mechanism","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The decreasing order of acidity of the marked H of the following molecules is A. I &gt; II &gt; III B. III &gt; I &gt; II C. III &gt; II &gt; I D. II &gt; I &gt; III<\/title>\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\/the-decreasing-order-of-acidity-of-the-marked-h-of-the-following-molecules-is-a-i-ii-iii-b-iii-i-ii-c-iii-ii-i-d-ii-i-iii\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The decreasing order of acidity of the marked H of the following molecules is A. I &gt; II &gt; III B. III &gt; I &gt; II C. III &gt; II &gt; I D. II &gt; I &gt; III\" \/>\n<meta property=\"og:description\" content=\"[amp_mcq option1=&#8221;I &gt; II &gt; III&#8221; option2=&#8221;III &gt; I &gt; II&#8221; option3=&#8221;III &gt; II &gt; I&#8221; option4=&#8221;II &gt; I &gt; III&#8221; correct=&#8221;option3&#8243;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/the-decreasing-order-of-acidity-of-the-marked-h-of-the-following-molecules-is-a-i-ii-iii-b-iii-i-ii-c-iii-ii-i-d-ii-i-iii\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2024-04-15T05:45:53+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":"The decreasing order of acidity of the marked H of the following molecules is A. I > II > III B. III > I > II C. III > II > I D. II > I > III","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\/the-decreasing-order-of-acidity-of-the-marked-h-of-the-following-molecules-is-a-i-ii-iii-b-iii-i-ii-c-iii-ii-i-d-ii-i-iii\/","og_locale":"en_US","og_type":"article","og_title":"The decreasing order of acidity of the marked H of the following molecules is A. I > II > III B. III > I > II C. III > II > I D. II > I > III","og_description":"[amp_mcq option1=&#8221;I > II > III&#8221; option2=&#8221;III > I > II&#8221; option3=&#8221;III > II > I&#8221; option4=&#8221;II > I > III&#8221; correct=&#8221;option3&#8243;]","og_url":"https:\/\/exam.pscnotes.com\/mcq\/the-decreasing-order-of-acidity-of-the-marked-h-of-the-following-molecules-is-a-i-ii-iii-b-iii-i-ii-c-iii-ii-i-d-ii-i-iii\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2024-04-15T05:45:53+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\/the-decreasing-order-of-acidity-of-the-marked-h-of-the-following-molecules-is-a-i-ii-iii-b-iii-i-ii-c-iii-ii-i-d-ii-i-iii\/","url":"https:\/\/exam.pscnotes.com\/mcq\/the-decreasing-order-of-acidity-of-the-marked-h-of-the-following-molecules-is-a-i-ii-iii-b-iii-i-ii-c-iii-ii-i-d-ii-i-iii\/","name":"The decreasing order of acidity of the marked H of the following molecules is A. 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