{"id":253989,"date":"2025-07-12T09:21:25","date_gmt":"2025-07-12T09:21:25","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=253989"},"modified":"2025-07-12T09:21:27","modified_gmt":"2025-07-12T09:21:27","slug":"what-is-the-correct-formula-for-iron-ii-sulfide","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/12\/what-is-the-correct-formula-for-iron-ii-sulfide\/","title":{"rendered":"What is the correct formula for iron (II) sulfide"},"content":{"rendered":"\n<p>What is the correct formula for iron (II) sulfide? FeS FeS FeS Fe2S3<\/p>\n\n\n\n<p><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><\/p>\n\n\n\n<p> <\/p>\n\n\n\n<p>The correct formula for iron (II) sulfide is <strong>FeS<\/strong>.<\/p>\n\n\n\n<p><strong>Explanation:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Iron (II) sulfide<\/strong> refers to a compound formed between iron in the +2 oxidation state (Fe\u00b2\u207a) and sulfur in the -2 oxidation state (S\u00b2\u207b).<\/li>\n\n\n\n<li>The charge of iron in iron (II) sulfide is +2, which is denoted by the Roman numeral II in the name. This means each iron ion carries a +2 charge.<\/li>\n\n\n\n<li>The charge on the sulfur ion (S\u00b2\u207b) is -2. To balance the charges, one Fe\u00b2\u207a ion combines with one S\u00b2\u207b ion, forming a neutral compound.<\/li>\n\n\n\n<li>The formula is derived by ensuring that the total positive charge equals the total negative charge. Since both the iron and sulfur ions have charges of 2 (but opposite in sign), the simplest ratio is 1:1. Hence, the formula for iron (II) sulfide is <strong>FeS<\/strong>.<\/li>\n\n\n\n<li>The other options, <strong>Fe2S3<\/strong>, refer to iron (III) sulfide, where iron is in the +3 oxidation state (Fe\u00b3\u207a), which is different from iron (II). In <strong>Fe2S3<\/strong>, two Fe\u00b3\u207a ions combine with three S\u00b2\u207b ions to form a neutral compound, which is a different compound entirely.<\/li>\n<\/ol>\n\n\n\n<p>Thus, the correct formula for <strong>iron (II) sulfide<\/strong> is <strong>FeS<\/strong>, where the iron ion is in its +2 oxidation state.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/07\/learnexams-banner6-358.jpeg\" alt=\"\" class=\"wp-image-254028\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>What is the correct formula for iron (II) sulfide? FeS FeS FeS Fe2S3 The Correct Answer and Explanation is: The correct formula for iron (II) sulfide is FeS. Explanation: Thus, the correct formula for iron (II) sulfide is FeS, where the iron ion is in its +2 oxidation state.<\/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-253989","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/253989","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=253989"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/253989\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=253989"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=253989"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=253989"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}