Which of the following is not a conjugate acid-base pair? <\/p>\n\n\n\n
A) NH4+\/NH3 B) H30-OH OC) H2SO3\/HSO3 D) C2H302-\/HC2H302<\/p>\n\n\n\n
The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n The correct answer is: B) H3O+\/OH-<\/strong><\/p>\n\n\n\n In acid-base chemistry, a conjugate acid-base pair consists of two species that differ by one proton (H+). When an acid donates a proton, it forms its conjugate base, and when a base accepts a proton, it forms its conjugate acid. The pairs share this proton-exchange relationship.<\/p>\n\n\n\n Let\u2019s analyze each option:<\/p>\n\n\n\n In summary, H3O+ and OH- do not constitute a conjugate acid-base pair<\/strong> because they are not directly related by the loss or gain of a single proton; they exist as separate ions in the dissociation of water. Thus, option B<\/strong> is the correct answer, as it is the only choice that does not represent a conjugate acid-base relationship.<\/p>\n","protected":false},"excerpt":{"rendered":" Which of the following is not a conjugate acid-base pair? A) NH4+\/NH3 B) H30-OH OC) H2SO3\/HSO3 D) C2H302-\/HC2H302 The Correct Answer and Explanation is: The correct answer is: B) H3O+\/OH- Explanation In acid-base chemistry, a conjugate acid-base pair consists of two species that differ by one proton (H+). When an acid donates a proton, it […]<\/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-163720","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/163720","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=163720"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/163720\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=163720"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=163720"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=163720"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Explanation<\/h3>\n\n\n\n
\n
In this pair, NH4+ (ammonium) is the conjugate acid, and NH3 (ammonia) is the conjugate base. NH4+ can donate a proton to become NH3, making them a classic conjugate acid-base pair.<\/li>\n\n\n\n
H3O+ (hydronium) and OH- (hydroxide) do not form a conjugate acid-base pair. While both are common species in acid-base reactions, they do not differ by a single proton. Instead, H3O+ is the conjugate acid of water (H2O), and OH- is the conjugate base of water. In the reaction of water dissociating into H3O+ and OH-, they are not directly related as a conjugate pair; rather, they form as a result of water\u2019s self-ionization.<\/li>\n\n\n\n
In this case, H2SO3 (sulfurous acid) is the conjugate acid, and HSO3- (hydrogen sulfite) is the conjugate base. H2SO3 can lose a proton to become HSO3-, making them a proper conjugate acid-base pair.<\/li>\n\n\n\n
This pair consists of acetate (C2H3O2-) as the conjugate base and acetic acid (HC2H3O2) as the conjugate acid. Acetic acid can donate a proton to become acetate, making them a correct conjugate acid-base pair.<\/li>\n<\/ol>\n\n\n\n