{"id":255947,"date":"2025-07-13T11:57:34","date_gmt":"2025-07-13T11:57:34","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=255947"},"modified":"2025-07-13T11:57:36","modified_gmt":"2025-07-13T11:57:36","slug":"what-is-the-formula-of-magnesium-sulfite","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/13\/what-is-the-formula-of-magnesium-sulfite\/","title":{"rendered":"What is the formula of magnesium sulfite"},"content":{"rendered":"\n<p>What is the formula of magnesium sulfite? A) MgSO4 B) MgSO3 C) MgS D) MgSO<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-0-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>The correct formula for magnesium sulfite is <strong>MgSO3<\/strong> (option B).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>Magnesium sulfite is a chemical compound composed of magnesium ions (Mg\u00b2\u207a) and sulfite ions (SO\u2083\u00b2\u207b). The sulfite ion is derived from sulfurous acid (H\u2082SO\u2083) and consists of one sulfur atom bonded to three oxygen atoms, with a charge of 2-.<\/p>\n\n\n\n<p>To form a neutral compound, the charges of the magnesium ions and sulfite ions must balance. Magnesium ions have a +2 charge, and sulfite ions have a -2 charge. Therefore, one magnesium ion combines with one sulfite ion to form the neutral compound magnesium sulfite. This results in the formula <strong>MgSO3<\/strong>.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Breakdown of the options:<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>A) MgSO4<\/strong>: This is the formula for magnesium sulfate, not magnesium sulfite. Sulfate (SO\u2084\u00b2\u207b) has one more oxygen atom than sulfite (SO\u2083\u00b2\u207b).<\/li>\n\n\n\n<li><strong>B) MgSO3<\/strong>: This is the correct formula for magnesium sulfite, where the charges of the magnesium ion and sulfite ion are balanced.<\/li>\n\n\n\n<li><strong>C) MgS<\/strong>: This is the formula for magnesium sulfide, a different compound formed when magnesium reacts with sulfur (S), not sulfite.<\/li>\n\n\n\n<li><strong>D) MgSO<\/strong>: This is not a valid formula for any known compound. Sulfite requires three oxygen atoms (SO\u2083\u00b2\u207b), not just one.<\/li>\n<\/ul>\n\n\n\n<p>Thus, the correct formula for magnesium sulfite is <strong>MgSO3<\/strong>.<\/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-banner6-530.jpeg\" alt=\"\" class=\"wp-image-255948\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>What is the formula of magnesium sulfite? A) MgSO4 B) MgSO3 C) MgS D) MgSO The Correct Answer and Explanation is: The correct formula for magnesium sulfite is MgSO3 (option B). Explanation: Magnesium sulfite is a chemical compound composed of magnesium ions (Mg\u00b2\u207a) and sulfite ions (SO\u2083\u00b2\u207b). The sulfite ion is derived from sulfurous acid [&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-255947","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/255947","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=255947"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/255947\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=255947"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=255947"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=255947"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}