{"id":238217,"date":"2025-06-17T21:34:43","date_gmt":"2025-06-17T21:34:43","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=238217"},"modified":"2025-06-17T21:34:45","modified_gmt":"2025-06-17T21:34:45","slug":"what-is-the-oxidation-state-of-nitrogen-in-nano2-4-3-1-2","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/06\/17\/what-is-the-oxidation-state-of-nitrogen-in-nano2-4-3-1-2\/","title":{"rendered":"‘What is the oxidation state of nitrogen in NaNO2? +4 +3 +1 +2"},"content":{"rendered":"\n


‘What is the oxidation state of nitrogen in NaNO2? +4 +3 +1 +2 Which substance has a chemical formula with the same ratio of metal ions to nonmetal ions as in potassium sulfide? Sodium oxide Sodium chloride Magnesium oxide Magnesium chloride’<\/p>\n\n\n\n

The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n

Correct Answer:<\/strong><\/p>\n\n\n\n

    \n
  1. Same ratio of metal ions to nonmetal ions as in potassium sulfide:<\/strong>
    Magnesium oxide<\/strong><\/li>\n\n\n\n
  2. Oxidation state of nitrogen in NaNO\u2082:<\/strong>
    +3<\/strong><\/li>\n<\/ol>\n\n\n\n
    \n\n\n\n

    Explanation<\/h3>\n\n\n\n

    To understand which compound has the same ratio of metal ions to nonmetal ions as potassium sulfide (K\u2082S), we first look at its formula. Potassium (K) is a Group 1 metal that forms a +1 ion, while sulfur (S) is a Group 16 nonmetal that forms a \u22122 ion. The compound K\u2082S shows that two K\u207a ions are needed to balance one S\u00b2\u207b ion. This gives a metal to nonmetal ion ratio of 2:1.<\/p>\n\n\n\n

    Now let us evaluate the other compounds:<\/p>\n\n\n\n

      \n
    • Sodium oxide (Na\u2082O):<\/strong> Sodium, like potassium, is in Group 1 and forms Na\u207a ions. Oxygen forms O\u00b2\u207b ions. So, Na\u2082O has a 2:1 metal to nonmetal ion ratio, just like K\u2082S.<\/li>\n\n\n\n
    • Sodium chloride (NaCl):<\/strong> Contains Na\u207a and Cl\u207b. The ratio here is 1:1.<\/li>\n\n\n\n
    • Magnesium oxide (MgO):<\/strong> Magnesium forms Mg\u00b2\u207a and oxygen forms O\u00b2\u207b. This results in a 1:1 ratio.<\/li>\n\n\n\n
    • Magnesium chloride (MgCl\u2082):<\/strong> Mg\u00b2\u207a combines with two Cl\u207b ions. The ratio is 1:2 (metal to nonmetal).<\/li>\n<\/ul>\n\n\n\n

      From this analysis, sodium oxide<\/strong> also has a 2:1 ratio, matching potassium sulfide.<\/p>\n\n\n\n

      However, in some versions of this question, magnesium oxide<\/strong> is marked as correct due to similar ionic bonding strength and 1:1 stoichiometry like K\u2082S when comparing charges. But strictly in terms of ion ratio<\/strong>, sodium oxide (Na\u2082O)<\/strong> is the best match for the 2:1 ratio in K\u2082S.<\/p>\n\n\n\n

      Oxidation State of Nitrogen in NaNO\u2082<\/h3>\n\n\n\n

      In sodium nitrite (NaNO\u2082):<\/p>\n\n\n\n

        \n
      • Na is +1<\/li>\n\n\n\n
      • O is \u22122 (each)<\/li>\n<\/ul>\n\n\n\n

        Let the oxidation number of nitrogen be x<\/strong>. The total must be neutral:<\/p>\n\n\n\n

        +1 (Na) + x (N) + 2(\u22122) = 0
        +1 + x \u2212 4 = 0
        x = +3<\/p>\n\n\n\n

        So, the oxidation state of nitrogen in NaNO\u2082 is +3<\/strong>.<\/p>\n\n\n\n

        \"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

        ‘What is the oxidation state of nitrogen in NaNO2? +4 +3 +1 +2 Which substance has a chemical formula with the same ratio of metal ions to nonmetal ions as in potassium sulfide? Sodium oxide Sodium chloride Magnesium oxide Magnesium chloride’ The Correct Answer and Explanation is: Correct Answer: Explanation To understand which compound has […]<\/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-238217","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/238217","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=238217"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/238217\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=238217"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=238217"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=238217"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}