{"id":228821,"date":"2025-06-07T16:11:00","date_gmt":"2025-06-07T16:11:00","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=228821"},"modified":"2025-06-07T16:11:03","modified_gmt":"2025-06-07T16:11:03","slug":"which-is-the-correct-name-for-p4o10","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/06\/07\/which-is-the-correct-name-for-p4o10\/","title":{"rendered":"Which is the correct name for P4O10"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Which is the correct name for P4O10? A. phosphorus oxide B. phosphorous decoxide C. tetraphosphorus decoxide D. tetraphosphorus oxide E. decoxygen tetraphosphide<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><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 class=\"wp-block-paragraph\">The correct name for <strong>P\u2084O\u2081\u2080<\/strong> is:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C. tetraphosphorus decoxide<\/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<p class=\"wp-block-paragraph\"><strong>P\u2084O\u2081\u2080<\/strong> is a <strong>binary covalent compound<\/strong>, meaning it is composed of two nonmetals\u2014<strong>phosphorus (P)<\/strong> and <strong>oxygen (O)<\/strong>. The naming of such compounds follows specific rules based on the <strong>IUPAC (International Union of Pure and Applied Chemistry)<\/strong> nomenclature system.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Step-by-Step Naming:<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Identify the elements<\/strong>:\n<ul class=\"wp-block-list\">\n<li>Phosphorus (P)<\/li>\n\n\n\n<li>Oxygen (O)<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Use prefixes to indicate the number of atoms<\/strong>:<ul><li>4 phosphorus atoms = <strong>tetraphosphorus<\/strong><\/li><li>10 oxygen atoms = <strong>decoxide<\/strong><\/li><\/ul>Prefixes:<ul><li>1 = mono-<\/li><li>2 = di-<\/li><li>3 = tri-<\/li><li>4 = tetra-<\/li><li>5 = penta-<\/li><li>6 = hexa-<\/li><li>7 = hepta-<\/li><li>8 = octa-<\/li><li>9 = nona-<\/li><li>10 = <strong>deca-<\/strong><\/li><\/ul>Note: When \u201cdeca-\u201d is combined with \u201coxide,\u201d the \u201ca\u201d is usually dropped to avoid awkward pronunciation: <strong>deca + oxide \u2192 decoxide<\/strong><\/li>\n\n\n\n<li><strong>Combine the names<\/strong>:\n<ul class=\"wp-block-list\">\n<li>The compound becomes <strong>tetraphosphorus decoxide<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\">Why Not the Other Options?<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>A. phosphorus oxide<\/strong> \u2013 Too vague; doesn\u2019t indicate the number of atoms.<\/li>\n\n\n\n<li><strong>B. phosphorous decoxide<\/strong> \u2013 &#8220;Phosphorous&#8221; is the adjective form used in compounds with phosphorus in a lower oxidation state (like phosphorous acid), but it&#8217;s not correct in this covalent context.<\/li>\n\n\n\n<li><strong>D. tetraphosphorus oxide<\/strong> \u2013 Incomplete; doesn\u2019t indicate 10 oxygen atoms.<\/li>\n\n\n\n<li><strong>E. decoxygen<\/strong> \u2013 Not a valid compound name; oxygen doesn\u2019t form &#8220;decoxygen&#8221; compounds.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Common Use:<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">P\u2084O\u2081\u2080 is commonly known as <strong>phosphorus pentoxide<\/strong> in industry, reflecting its empirical formula (P\u2082O\u2085), but the molecular name <strong>tetraphosphorus decoxide<\/strong> is the correct systematic IUPAC name based on its actual molecular composition.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner4-630.jpeg\" alt=\"\" class=\"wp-image-228822\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Which is the correct name for P4O10? A. phosphorus oxide B. phosphorous decoxide C. tetraphosphorus decoxide D. tetraphosphorus oxide E. decoxygen tetraphosphide The Correct Answer and Explanation is: The correct name for P\u2084O\u2081\u2080 is: C. tetraphosphorus decoxide Explanation P\u2084O\u2081\u2080 is a binary covalent compound, meaning it is composed of two nonmetals\u2014phosphorus (P) and oxygen (O). [&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-228821","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/228821","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=228821"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/228821\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=228821"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=228821"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=228821"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}