{"id":188616,"date":"2025-02-07T06:07:02","date_gmt":"2025-02-07T06:07:02","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=188616"},"modified":"2025-02-07T06:07:07","modified_gmt":"2025-02-07T06:07:07","slug":"select-the-pair-of-substances-which-is-not-a-conjugate-acid-base-pair","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/02\/07\/select-the-pair-of-substances-which-is-not-a-conjugate-acid-base-pair\/","title":{"rendered":"Select The Pair Of Substances Which Is NOT A Conjugate Acid-Base Pair"},"content":{"rendered":"\n<p>Select The Pair Of Substances Which Is NOT A Conjugate Acid-Base Pair. OANH And NH3 B. C6H5COOH And CoHs COO CH3Oand OH D. HOBr And OB E. S2- And HS<\/p>\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 correct answer is <strong>B. C6H5COOH and C6H5COO-<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>A <strong>conjugate acid-base pair<\/strong> consists of two substances related by the loss or gain of a proton (H+). In other words, an acid and its conjugate base differ by a single proton, and a base and its conjugate acid also differ by a single proton.<\/p>\n\n\n\n<p>Let&#8217;s examine each pair:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>OANH and NH3<\/strong>:\n<ul class=\"wp-block-list\">\n<li>This pair is a <strong>conjugate acid-base pair<\/strong>.<\/li>\n\n\n\n<li>OANH (presumably an acid form of an organic compound) could donate a proton to become NH3 (ammonia), which is a base. When the acid loses a proton, it forms its conjugate base, NH3.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>C6H5COOH and C6H5COO-<\/strong>:\n<ul class=\"wp-block-list\">\n<li>This pair is a <strong>conjugate acid-base pair<\/strong>.<\/li>\n\n\n\n<li>C6H5COOH (benzoic acid) can donate a proton (H+) to become C6H5COO- (benzoate), the conjugate base. The proton is transferred from the acid to form the base.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>CH3O- and OH-<\/strong>:\n<ul class=\"wp-block-list\">\n<li>This is <strong>NOT<\/strong> a conjugate acid-base pair.<\/li>\n\n\n\n<li>CH3O- (methoxide ion) is the conjugate base of CH3OH (methanol), while OH- (hydroxide ion) is the conjugate base of water (H2O). These two are not related by a proton transfer, so they do not form a conjugate pair.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>HOBr and OBr-<\/strong>:\n<ul class=\"wp-block-list\">\n<li>This is a <strong>conjugate acid-base pair<\/strong>.<\/li>\n\n\n\n<li>HOBr (hypobromous acid) can lose a proton to form OBr- (hypobromite ion), which is its conjugate base.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>S2- and HS-<\/strong>:\n<ul class=\"wp-block-list\">\n<li>This is a <strong>conjugate acid-base pair<\/strong>.<\/li>\n\n\n\n<li>S2- (sulfide ion) is the conjugate base of HS- (hydrosulfide ion). HS- can donate a proton to form S2-, making them a conjugate acid-base pair.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>Thus, <strong>Option C (CH3O- and OH-)<\/strong> is the only one that does not represent a conjugate acid-base pair.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Select The Pair Of Substances Which Is NOT A Conjugate Acid-Base Pair. OANH And NH3 B. C6H5COOH And CoHs COO CH3Oand OH D. HOBr And OB E. S2- And HS The Correct Answer and Explanation is : The correct answer is B. C6H5COOH and C6H5COO-. Explanation: A conjugate acid-base pair consists of two substances related [&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-188616","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/188616","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=188616"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/188616\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=188616"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=188616"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=188616"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}