{"id":88158,"date":"2025-06-01T07:03:39","date_gmt":"2025-06-01T07:03:39","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=88158"},"modified":"2025-06-01T07:03:39","modified_gmt":"2025-06-01T07:03:39","slug":"white-phosphorus-glows-in-the-dark-due-to","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/white-phosphorus-glows-in-the-dark-due-to\/","title":{"rendered":"White Phosphorus glows in the dark due to:"},"content":{"rendered":"<p>White Phosphorus glows in the dark due to:<\/p>\n<p>[amp_mcq option1=&#8221;amorphous character&#8221; option2=&#8221;slow oxidation&#8221; option3=&#8221;high ignition temperature&#8221; option4=&#8221;good conducting property of electricity&#8221; correct=&#8221;option2&#8243;]<\/p>\n<div class=\"psc-box-pyq-exam-year-detail\">\n<div class=\"pyq-exam\">\n<div class=\"psc-heading\">This question was previously asked in<\/div>\n<div class=\"psc-title line-ellipsis\">UPSC NDA-2 &#8211; 2015<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-nda-2-2015.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-nda-2-2015\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">\nThe correct answer is B) slow oxidation.<br \/>\n<\/section>\n<section id=\"pyq-key-points\">\nWhite phosphorus exhibits phosphorescence, which is a form of chemiluminescence resulting from its slow oxidation when exposed to air. This process releases energy in the form of light, causing it to glow faintly in the dark. This is often referred to as &#8216;cold light&#8217;.<br \/>\n<\/section>\n<section id=\"pyq-additional-information\">\nAmorphous character, high ignition temperature (white phosphorus has a very low ignition temperature, around 30\u00b0C), and good electrical conductivity are not the reasons for its glow. Its low ignition temperature makes it highly reactive and dangerous.<br \/>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>White Phosphorus glows in the dark due to: [amp_mcq option1=&#8221;amorphous character&#8221; option2=&#8221;slow oxidation&#8221; option3=&#8221;high ignition temperature&#8221; option4=&#8221;good conducting property of electricity&#8221; correct=&#8221;option2&#8243;] This question was previously asked in UPSC NDA-2 &#8211; 2015 Download PDFAttempt Online The correct answer is B) slow oxidation. White phosphorus exhibits phosphorescence, which is a form of chemiluminescence resulting from its &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"White Phosphorus glows in the dark due to:\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/white-phosphorus-glows-in-the-dark-due-to\/#more-88158\">Detailed Solution<span class=\"screen-reader-text\">White Phosphorus glows in the dark due to:<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1094],"tags":[1443,1096,1326],"class_list":["post-88158","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-2","tag-1443","tag-chemistry","tag-non-metals","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>White Phosphorus glows in the dark due to:<\/title>\n<meta name=\"description\" content=\"The correct answer is B) slow oxidation. White phosphorus exhibits phosphorescence, which is a form of chemiluminescence resulting from its slow oxidation when exposed to air. This process releases energy in the form of light, causing it to glow faintly in the dark. This is often referred to as &#039;cold light&#039;.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/white-phosphorus-glows-in-the-dark-due-to\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"White Phosphorus glows in the dark due to:\" \/>\n<meta property=\"og:description\" content=\"The correct answer is B) slow oxidation. White phosphorus exhibits phosphorescence, which is a form of chemiluminescence resulting from its slow oxidation when exposed to air. This process releases energy in the form of light, causing it to glow faintly in the dark. This is often referred to as &#039;cold light&#039;.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/white-phosphorus-glows-in-the-dark-due-to\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T07:03:39+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"White Phosphorus glows in the dark due to:","description":"The correct answer is B) slow oxidation. White phosphorus exhibits phosphorescence, which is a form of chemiluminescence resulting from its slow oxidation when exposed to air. This process releases energy in the form of light, causing it to glow faintly in the dark. This is often referred to as 'cold light'.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/white-phosphorus-glows-in-the-dark-due-to\/","og_locale":"en_US","og_type":"article","og_title":"White Phosphorus glows in the dark due to:","og_description":"The correct answer is B) slow oxidation. White phosphorus exhibits phosphorescence, which is a form of chemiluminescence resulting from its slow oxidation when exposed to air. This process releases energy in the form of light, causing it to glow faintly in the dark. This is often referred to as 'cold light'.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/white-phosphorus-glows-in-the-dark-due-to\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T07:03:39+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/white-phosphorus-glows-in-the-dark-due-to\/","url":"https:\/\/exam.pscnotes.com\/mcq\/white-phosphorus-glows-in-the-dark-due-to\/","name":"White Phosphorus glows in the dark due to:","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T07:03:39+00:00","dateModified":"2025-06-01T07:03:39+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The correct answer is B) slow oxidation. White phosphorus exhibits phosphorescence, which is a form of chemiluminescence resulting from its slow oxidation when exposed to air. This process releases energy in the form of light, causing it to glow faintly in the dark. This is often referred to as 'cold light'.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/white-phosphorus-glows-in-the-dark-due-to\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/white-phosphorus-glows-in-the-dark-due-to\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/white-phosphorus-glows-in-the-dark-due-to\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC NDA-2","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-nda-2\/"},{"@type":"ListItem","position":3,"name":"White Phosphorus glows in the dark due to:"}]},{"@type":"WebSite","@id":"https:\/\/exam.pscnotes.com\/mcq\/#website","url":"https:\/\/exam.pscnotes.com\/mcq\/","name":"MCQ and Quiz for Exams","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/exam.pscnotes.com\/mcq\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209","name":"rawan239","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","caption":"rawan239"},"sameAs":["https:\/\/exam.pscnotes.com"],"url":"https:\/\/exam.pscnotes.com\/mcq\/author\/rawan239\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/88158","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/comments?post=88158"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/88158\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=88158"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=88158"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=88158"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}