{"id":200140,"date":"2025-03-13T08:18:02","date_gmt":"2025-03-13T08:18:02","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=200140"},"modified":"2025-03-13T08:18:08","modified_gmt":"2025-03-13T08:18:08","slug":"what-is-the-oxidation-state-of-iron-2","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/03\/13\/what-is-the-oxidation-state-of-iron-2\/","title":{"rendered":"What is the oxidation state of iron"},"content":{"rendered":"\n<p>What is the oxidation state of iron?<br>FeC2O4<\/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>In the compound iron(II) oxalate, FeC\u2082O\u2084, the oxidation state of iron (Fe) is <strong>+2<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>Iron oxalate consists of iron (Fe) and the oxalate ion (C\u2082O\u2084\u00b2\u207b). Let&#8217;s break this down to understand how to determine the oxidation state of iron.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Oxalate Ion (C\u2082O\u2084\u00b2\u207b)<\/strong>:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The oxalate ion is a bidentate ligand (meaning it can form two bonds), consisting of two carbon atoms and four oxygen atoms.<\/li>\n\n\n\n<li>The overall charge of the oxalate ion is <strong>2-<\/strong>.<\/li>\n\n\n\n<li>Oxygen generally has an oxidation state of <strong>-2<\/strong>. Therefore, for the four oxygen atoms in the oxalate ion, the total oxidation state contribution is <strong>4 \u00d7 (-2) = -8<\/strong>.<\/li>\n\n\n\n<li>Let\u2019s assume that the oxidation state of carbon (C) in the oxalate ion is <strong>+3<\/strong> (since each carbon atom in oxalate generally has an oxidation state of +3).<\/li>\n\n\n\n<li>Now, the total oxidation state of the oxalate ion is:<br>( 2 \\times (+3) + 4 \\times (-2) = +6 &#8211; 8 = -2 ), which matches the overall charge of the oxalate ion (C\u2082O\u2084\u00b2\u207b).<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Iron (Fe)<\/strong>:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>In iron(II) oxalate, iron is bonded to the oxalate ion.<\/li>\n\n\n\n<li>Since the oxalate ion carries a charge of <strong>-2<\/strong>, and the overall compound is neutral, the oxidation state of iron (Fe) must balance out the charge of the oxalate ion.<\/li>\n\n\n\n<li>Therefore, the oxidation state of iron must be <strong>+2<\/strong> to neutralize the negative charge of the oxalate ion, since ( +2 + (-2) = 0 ).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Conclusion:<\/h3>\n\n\n\n<p>The oxidation state of iron (Fe) in FeC\u2082O\u2084 is <strong>+2<\/strong>, meaning it is in the +2 oxidation state (Fe\u00b2\u207a). This is characteristic of iron(II) compounds.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is the oxidation state of iron?FeC2O4 The correct answer and explanation is : In the compound iron(II) oxalate, FeC\u2082O\u2084, the oxidation state of iron (Fe) is +2. Explanation: Iron oxalate consists of iron (Fe) and the oxalate ion (C\u2082O\u2084\u00b2\u207b). Let&#8217;s break this down to understand how to determine the oxidation state of iron. Conclusion: [&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-200140","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/200140","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=200140"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/200140\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=200140"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=200140"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=200140"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}