{"id":218674,"date":"2025-05-24T07:41:24","date_gmt":"2025-05-24T07:41:24","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=218674"},"modified":"2025-05-24T07:41:27","modified_gmt":"2025-05-24T07:41:27","slug":"what-is-the-correct-iupac-name-for-feno22","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/05\/24\/what-is-the-correct-iupac-name-for-feno22\/","title":{"rendered":"What is the correct IUPAC name for Fe(NO2)2"},"content":{"rendered":"\n<p>What is the correct IUPAC name for Fe(NO2)2?<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>The correct IUPAC name for <strong>Fe(NO2)2<\/strong> is <strong>iron(II) nitrite<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Identify the metal and its oxidation state:<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The compound contains iron (Fe) and nitrite ions (NO2\u207b).<\/li>\n\n\n\n<li>Nitrite ion is a polyatomic ion with a charge of \u20131.<\/li>\n\n\n\n<li>Since there are two nitrite ions, the total negative charge is \u20132.<\/li>\n\n\n\n<li>To balance this, iron must have a +2 charge.<\/li>\n\n\n\n<li>Therefore, iron is in the +2 oxidation state.<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Name of the cation:<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The cation is iron.<\/li>\n\n\n\n<li>Because iron can have multiple oxidation states (commonly +2 and +3), the oxidation state is indicated by Roman numerals in parentheses immediately after the metal name.<\/li>\n\n\n\n<li>Here, iron is +2, so it is named <strong>iron(II)<\/strong>.<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Name of the anion:<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The anion is the nitrite ion, NO2\u207b.<\/li>\n\n\n\n<li>The suffix <strong>\u201c-ite\u201d<\/strong> denotes the nitrite ion (less oxygen compared to nitrate, NO3\u207b).<\/li>\n\n\n\n<li>The name of the anion is <strong>nitrite<\/strong>.<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Combine the names:<\/strong><\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The cation name with oxidation state + anion name = <strong>iron(II) nitrite<\/strong>.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Additional Notes:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>This is an <strong>ionic compound<\/strong> composed of a metal cation and a polyatomic anion.<\/li>\n\n\n\n<li>When naming ionic compounds with transition metals, <strong>indicating the oxidation state<\/strong> of the metal is essential because they can have multiple oxidation states.<\/li>\n\n\n\n<li>The oxidation state is determined from the known charge of the anion(s).<\/li>\n\n\n\n<li>The compound <strong>Fe(NO2)2<\/strong> should not be confused with iron nitrate, Fe(NO3)2 or Fe(NO3)3, where the anion is nitrate (NO3\u207b).<\/li>\n\n\n\n<li>The correct IUPAC naming follows the rules set by the International Union of Pure and Applied Chemistry to ensure consistency and clarity in chemical nomenclature.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Summary:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Fe<\/strong> = Iron, with oxidation state +2 \u2192 <strong>iron(II)<\/strong><\/li>\n\n\n\n<li><strong>NO2\u207b<\/strong> = Nitrite ion \u2192 <strong>nitrite<\/strong><\/li>\n\n\n\n<li>Hence, <strong>Fe(NO2)2<\/strong> is named <strong>iron(II) nitrite<\/strong>.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/05\/image-313.png\" alt=\"\" class=\"wp-image-218675\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>What is the correct IUPAC name for Fe(NO2)2? The Correct Answer and Explanation is: The correct IUPAC name for Fe(NO2)2 is iron(II) nitrite. Explanation: Additional Notes: Summary:<\/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-218674","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/218674","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=218674"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/218674\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=218674"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=218674"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=218674"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}