{"id":183847,"date":"2025-01-17T07:03:38","date_gmt":"2025-01-17T07:03:38","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=183847"},"modified":"2025-01-17T07:03:40","modified_gmt":"2025-01-17T07:03:40","slug":"analyze-the-ir-spectrum-of-salicylic-acid-and-manually-identify-3-signals-in-the-spectrum-that-are-indicative-of-the-functional-groups-present-in-the-product","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/01\/17\/analyze-the-ir-spectrum-of-salicylic-acid-and-manually-identify-3-signals-in-the-spectrum-that-are-indicative-of-the-functional-groups-present-in-the-product\/","title":{"rendered":"Analyze the IR spectrum of Salicylic Acid and manually identify 3 signals in the spectrum that are indicative of the functional groups present in the product"},"content":{"rendered":"\n<p>Analyze the IR spectrum of Salicylic Acid and manually identify 3 signals in the spectrum that are indicative of the functional groups present in the product.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/01\/image-306.png\" alt=\"\" class=\"wp-image-183848\"\/><\/figure>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The Correct Answer and Explanation is :<\/strong><\/mark><\/p>\n\n\n\n<p>The IR spectrum of salicylic acid can be analyzed to identify key functional groups based on characteristic absorption peaks. Here are three important signals to identify in the spectrum:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>O-H Stretching (Broad Peak)<\/strong><br><strong>Location:<\/strong> Around 3200-3600 cm\u207b\u00b9<br>This broad peak corresponds to the hydroxyl (-OH) group of the carboxylic acid and phenolic functional groups. The carboxylic acid O-H stretching typically appears broader due to hydrogen bonding, while the phenol O-H stretching may slightly overlap within this range.<\/li>\n\n\n\n<li><strong>C=O Stretching (Sharp Peak)<\/strong><br><strong>Location:<\/strong> Around 1680-1720 cm\u207b\u00b9<br>This sharp and distinct peak is indicative of the carbonyl (C=O) group present in the carboxylic acid. The position of this peak is characteristic of carboxylic acids and helps differentiate it from ketones or aldehydes.<\/li>\n\n\n\n<li><strong>Aromatic C=C Stretching (Medium Intensity)<\/strong><br><strong>Location:<\/strong> Around 1500-1600 cm\u207b\u00b9<br>These peaks arise from the aromatic ring stretching vibrations. Salicylic acid contains a benzene ring, and the absorptions in this range confirm the presence of an aromatic structure.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation<\/h3>\n\n\n\n<p>Salicylic acid consists of a carboxylic acid group, a hydroxyl group attached to the benzene ring, and an aromatic ring. The IR spectrum serves as a fingerprint to confirm the presence of these functional groups. The broad peak around 3200-3600 cm\u207b\u00b9 confirms the hydroxyl group, while the sharp peak near 1700 cm\u207b\u00b9 is definitive evidence of the carboxylic acid&#8217;s carbonyl group. Additionally, the series of medium-intensity peaks around 1500-1600 cm\u207b\u00b9 provides evidence of the aromatic ring.<\/p>\n\n\n\n<p>This analysis validates the structure of salicylic acid, distinguishing it from other compounds by correlating these characteristic peaks with its molecular functional groups.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Analyze the IR spectrum of Salicylic Acid and manually identify 3 signals in the spectrum that are indicative of the functional groups present in the product. The Correct Answer and Explanation is : The IR spectrum of salicylic acid can be analyzed to identify key functional groups based on characteristic absorption peaks. Here are three [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-183847","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/183847","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=183847"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/183847\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=183847"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=183847"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=183847"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}