{"id":266779,"date":"2025-07-23T07:11:25","date_gmt":"2025-07-23T07:11:25","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=266779"},"modified":"2025-07-23T07:11:26","modified_gmt":"2025-07-23T07:11:26","slug":"which-formula-best-represents-the-form-a-primary-amine-takes-in-acidic-solution","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/23\/which-formula-best-represents-the-form-a-primary-amine-takes-in-acidic-solution\/","title":{"rendered":"Which formula best represents the form a primary amine takes in acidic solution"},"content":{"rendered":"\n<p>Which formula best represents the form a primary amine takes in acidic solution? <\/p>\n\n\n\n<p>A) RNH2 <\/p>\n\n\n\n<p>B) RNH- <\/p>\n\n\n\n<p>C) RNH2- <\/p>\n\n\n\n<p>D) RNH2+ <\/p>\n\n\n\n<p>E) RNH3+<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\">The correct answer and explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>The correct answer is <strong>E) RNH3+<\/strong>.<\/p>\n\n\n\n<p>Explanation:<br>A primary amine, such as <strong>RNH2<\/strong>, consists of a nitrogen atom bonded to a single alkyl group (R) and two hydrogen atoms. In a neutral or basic environment, a primary amine exists in its neutral form, <strong>RNH2<\/strong>. However, when it is in an acidic solution, the amine can act as a base, accepting a proton (H+).<\/p>\n\n\n\n<p>A primary amine has a lone pair of electrons on the nitrogen atom, which can readily accept a proton. When this happens in an acidic solution, the nitrogen atom becomes positively charged, resulting in the formation of <strong>RNH3+<\/strong>. This protonated form of the primary amine is the one that is prevalent in acidic conditions.<\/p>\n\n\n\n<p>Let&#8217;s break it down:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>RNH2 (Option A)<\/strong> represents the neutral amine. In acidic conditions, it will accept a proton to form <strong>RNH3+<\/strong>, so it is not the correct form in acid.<\/li>\n\n\n\n<li><strong>RNH- (Option B)<\/strong> represents a negatively charged amine, which is unlikely in acidic conditions since the solution would provide an abundance of protons, not favoring negative charges.<\/li>\n\n\n\n<li><strong>RNH2- (Option C)<\/strong> indicates a doubly negatively charged amine, which does not occur in acidic environments.<\/li>\n\n\n\n<li><strong>RNH2+ (Option D)<\/strong> is a mistaken representation, as it does not capture the typical protonation behavior of primary amines in acids, where they form <strong>RNH3+<\/strong> rather than <strong>RNH2+<\/strong>.<\/li>\n<\/ol>\n\n\n\n<p>Thus, in an acidic environment, the primary amine will be protonated to form <strong>RNH3+<\/strong>, which is the correct representation of its form in acidic solution.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Which formula best represents the form a primary amine takes in acidic solution? A) RNH2 B) RNH- C) RNH2- D) RNH2+ E) RNH3+ The correct answer and explanation is: The correct answer is E) RNH3+. Explanation:A primary amine, such as RNH2, consists of a nitrogen atom bonded to a single alkyl group (R) and two [&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-266779","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/266779","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=266779"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/266779\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=266779"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=266779"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=266779"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}