{"id":196607,"date":"2025-03-05T14:29:53","date_gmt":"2025-03-05T14:29:53","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=196607"},"modified":"2025-03-05T14:29:56","modified_gmt":"2025-03-05T14:29:56","slug":"which-of-the-following-is-not-a-buffer","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/03\/05\/which-of-the-following-is-not-a-buffer\/","title":{"rendered":"Which of the following is not a buffer"},"content":{"rendered":"\n<p>Which of the following is not a buffer?<br>A. H\u2082CO\u2083\/HCO3<br>C. NH\u2082OH\/NH CI<br>B. CH3COOH\/CH COONa<br>D. NH\u2082OH\/CH COOH<\/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>C. NH\u2082OH\/NH\u2084Cl<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>A buffer solution is a system that resists changes in pH when small amounts of acid or base are added. Buffers typically consist of:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>A <strong>weak acid<\/strong> and its <strong>conjugate base<\/strong> (e.g., CH\u2083COOH\/CH\u2083COO\u207b).<\/li>\n\n\n\n<li>A <strong>weak base<\/strong> and its <strong>conjugate acid<\/strong> (e.g., NH\u2083\/NH\u2084\u207a).<\/li>\n<\/ol>\n\n\n\n<p>Now, let\u2019s analyze each option:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>A. H\u2082CO\u2083\/HCO\u2083\u207b (Carbonic Acid\/Bicarbonate Buffer):<\/strong><\/li>\n\n\n\n<li>This is a well-known buffer system in biological fluids, including blood.<\/li>\n\n\n\n<li>H\u2082CO\u2083 (carbonic acid) is a weak acid, and HCO\u2083\u207b (bicarbonate) is its conjugate base.<\/li>\n\n\n\n<li>It helps maintain blood pH around 7.4.<\/li>\n\n\n\n<li><strong>B. CH\u2083COOH\/CH\u2083COONa (Acetic Acid\/Sodium Acetate Buffer):<\/strong><\/li>\n\n\n\n<li>This is a classic acidic buffer.<\/li>\n\n\n\n<li>CH\u2083COOH (acetic acid) is a weak acid, and CH\u2083COO\u207b (acetate) is its conjugate base from sodium acetate.<\/li>\n\n\n\n<li>It is commonly used in laboratory experiments to maintain pH.<\/li>\n\n\n\n<li><strong>C. NH\u2082OH\/NH\u2084Cl (Hydroxylamine\/Ammonium Chloride) &#8211; NOT A BUFFER:<\/strong><\/li>\n\n\n\n<li>NH\u2082OH (hydroxylamine) is a weak base.<\/li>\n\n\n\n<li>NH\u2084Cl (ammonium chloride) provides NH\u2084\u207a, which is the conjugate acid of NH\u2083 (not hydroxylamine).<\/li>\n\n\n\n<li>Since NH\u2082OH and NH\u2084Cl are not a conjugate acid-base pair, they do not form a proper buffer system.<\/li>\n\n\n\n<li><strong>D. NH\u2082OH\/CH\u2083COOH (Hydroxylamine\/Acetic Acid):<\/strong><\/li>\n\n\n\n<li>This is a weak base (NH\u2082OH) and a weak acid (CH\u2083COOH), which may provide some buffering capacity.<\/li>\n\n\n\n<li>However, it is not a strong buffer system compared to standard acid\/base pairs.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Conclusion:<\/h3>\n\n\n\n<p>The pair <strong>NH\u2082OH\/NH\u2084Cl<\/strong> (Option C) does not form a proper buffer, making it the correct answer.<\/p>\n\n\n\n<p>Now, I will generate an image illustrating the buffer concept.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/03\/image-238.png\" alt=\"\" class=\"wp-image-196608\"\/><\/figure>\n\n\n\n<p>I&#8217;ve generated an image explaining buffer solutions, highlighting the correct buffer systems and marking NH\u2082OH\/NH\u2084Cl as not a buffer<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Which of the following is not a buffer?A. H\u2082CO\u2083\/HCO3C. NH\u2082OH\/NH CIB. CH3COOH\/CH COONaD. NH\u2082OH\/CH COOH The correct answer and explanation is : The correct answer is C. NH\u2082OH\/NH\u2084Cl. Explanation: A buffer solution is a system that resists changes in pH when small amounts of acid or base are added. Buffers typically consist of: Now, let\u2019s [&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-196607","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/196607","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=196607"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/196607\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=196607"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=196607"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=196607"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}