{"id":182227,"date":"2025-01-13T14:05:36","date_gmt":"2025-01-13T14:05:36","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=182227"},"modified":"2025-01-13T14:05:38","modified_gmt":"2025-01-13T14:05:38","slug":"what-is-the-oxidation-number-of-pin-bah2po42","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/01\/13\/what-is-the-oxidation-number-of-pin-bah2po42\/","title":{"rendered":"What is the oxidation number of Pin Ba(H2PO4)2"},"content":{"rendered":"\n<p>What is the oxidation number of Pin Ba(H2PO4)2?<\/p>\n\n\n\n<p> A +1<\/p>\n\n\n\n<p> B. +2<\/p>\n\n\n\n<p> C. +3<\/p>\n\n\n\n<p> D. +4<\/p>\n\n\n\n<p> E. +5<\/p>\n\n\n\n<p> F. +6<\/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>A. +1<\/strong>.<\/p>\n\n\n\n<p>To understand why, let&#8217;s break down the oxidation numbers in <strong>Ba(H\u2082PO\u2084)\u2082<\/strong>, which is barium dihydrogen phosphate.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Identify the elements in the compound:<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ba (Barium):<\/strong> This is an alkaline earth metal.<\/li>\n\n\n\n<li><strong>H\u2082PO\u2084 (Dihydrogen phosphate ion):<\/strong> This is the complex ion composed of hydrogen, phosphorus, oxygen, and hydrogen again.<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Oxidation number rules:<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The oxidation number of <strong>oxygen<\/strong> is typically <strong>-2<\/strong>.<\/li>\n\n\n\n<li>The oxidation number of <strong>hydrogen<\/strong> is <strong>+1<\/strong> when it is bonded to nonmetals (like in H\u2082PO\u2084\u207b).<\/li>\n\n\n\n<li>The sum of the oxidation numbers of all atoms in a neutral molecule must equal zero.<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Analyze the dihydrogen phosphate ion (H\u2082PO\u2084\u207b):<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The total charge on the H\u2082PO\u2084 ion is <strong>-1<\/strong>.<\/li>\n\n\n\n<li>Hydrogen atoms each contribute <strong>+1<\/strong>, so the two hydrogens contribute <strong>+2<\/strong>.<\/li>\n\n\n\n<li>Oxygen atoms each contribute <strong>-2<\/strong>, and since there are four oxygens, they contribute <strong>-8<\/strong>.<\/li>\n\n\n\n<li>To balance the charges, the phosphorus (P) atom must contribute <strong>+5<\/strong> to make the total charge of the ion equal to <strong>-1<\/strong>:<br>[<br>+2 \\, (\\text{from H}) + x \\, (\\text{from P}) + (-8) \\, (\\text{from O}) = -1<br>]<br>[<br>+2 + x &#8211; 8 = -1 \\quad \\Rightarrow \\quad x = +5<br>]<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Now consider Ba (Barium):<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Barium is in Group 2 of the periodic table, so it has an oxidation number of <strong>+2<\/strong> in ionic compounds, such as Ba\u00b2\u207a.<\/li>\n\n\n\n<li>However, Ba is paired with two dihydrogen phosphate ions (H\u2082PO\u2084\u207b), each with a charge of <strong>-1<\/strong>. To balance the charges, Ba must have an oxidation number of <strong>+2<\/strong>, which compensates for the two <strong>-1<\/strong> charges from the H\u2082PO\u2084\u207b ions.<\/li>\n<\/ul>\n\n\n\n<p>Therefore, the <strong>oxidation number of Ba in Ba(H\u2082PO\u2084)\u2082<\/strong> is <strong>+2<\/strong>.<\/p>\n\n\n\n<p>This confirms that the correct answer is <strong>B. +2<\/strong>, not <strong>A<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is the oxidation number of Pin Ba(H2PO4)2? A +1 B. +2 C. +3 D. +4 E. +5 F. +6 The Correct Answer and Explanation is : The correct answer is A. +1. To understand why, let&#8217;s break down the oxidation numbers in Ba(H\u2082PO\u2084)\u2082, which is barium dihydrogen phosphate. Therefore, the oxidation number of Ba [&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-182227","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/182227","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=182227"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/182227\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=182227"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=182227"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=182227"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}