{"id":85485,"date":"2025-06-01T03:18:38","date_gmt":"2025-06-01T03:18:38","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=85485"},"modified":"2025-06-01T03:18:38","modified_gmt":"2025-06-01T03:18:38","slug":"which-one-of-the-following-is-the-correct-order-of-reactivity-of-mg-a","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-correct-order-of-reactivity-of-mg-a\/","title":{"rendered":"Which one of the following is the correct order of reactivity of Mg, A"},"content":{"rendered":"

Which one of the following is the correct order of reactivity of Mg, Al, Zn and Fe with HCl?<\/p>\n

[amp_mcq option1=”Mg > Al > Zn > Fe” option2=”Mg > Al > Fe > Zn” option3=”Zn > Fe > Mg > Al” option4=”Fe > Al > Zn > Mg” correct=”option1″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC CDS-1 – 2024<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
The reactivity of metals with dilute acids like HCl to displace hydrogen depends on the position of the metal in the reactivity series. Metals higher in the series are more reactive.<\/section>\n
The standard reactivity series (based on standard electrode potentials) places these metals in the order of decreasing reactivity as Mg > Al > Zn > Fe > H. Therefore, their reactivity with HCl follows the same order: Mg > Al > Zn > Fe.<\/section>\n
While Aluminium is theoretically more reactive than Zinc, its reaction with acids can sometimes be slower than expected due to the formation of a protective oxide layer on its surface. However, the fundamental order of reactivity based on standard potentials remains Mg > Al > Zn > Fe.<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following is the correct order of reactivity of Mg, Al, Zn and Fe with HCl? [amp_mcq option1=”Mg > Al > Zn > Fe” option2=”Mg > Al > Fe > Zn” option3=”Zn > Fe > Mg > Al” option4=”Fe > Al > Zn > Mg” correct=”option1″] This question was previously asked in … <\/p>\n

Detailed SolutionWhich one of the following is the correct order of reactivity of Mg, A<\/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":[1087],"tags":[1103,1096,1109],"class_list":["post-85485","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-1","tag-1103","tag-chemistry","tag-metals-minerals-ores-properties-uses","no-featured-image-padding"],"yoast_head":"\nWhich one of the following is the correct order of reactivity of Mg, A<\/title>\n<meta name=\"description\" content=\"The reactivity of metals with dilute acids like HCl to displace hydrogen depends on the position of the metal in the reactivity series. Metals higher in the series are more reactive. The standard reactivity series (based on standard electrode potentials) places these metals in the order of decreasing reactivity as Mg > Al > Zn > Fe > H. Therefore, their reactivity with HCl follows the same order: Mg > Al > Zn > Fe.\" \/>\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\/which-one-of-the-following-is-the-correct-order-of-reactivity-of-mg-a\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which one of the following is the correct order of reactivity of Mg, A\" \/>\n<meta property=\"og:description\" content=\"The reactivity of metals with dilute acids like HCl to displace hydrogen depends on the position of the metal in the reactivity series. Metals higher in the series are more reactive. The standard reactivity series (based on standard electrode potentials) places these metals in the order of decreasing reactivity as Mg > Al > Zn > Fe > H. Therefore, their reactivity with HCl follows the same order: Mg > Al > Zn > Fe.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-correct-order-of-reactivity-of-mg-a\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T03:18:38+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":"Which one of the following is the correct order of reactivity of Mg, A","description":"The reactivity of metals with dilute acids like HCl to displace hydrogen depends on the position of the metal in the reactivity series. Metals higher in the series are more reactive. The standard reactivity series (based on standard electrode potentials) places these metals in the order of decreasing reactivity as Mg > Al > Zn > Fe > H. Therefore, their reactivity with HCl follows the same order: Mg > Al > Zn > Fe.","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\/which-one-of-the-following-is-the-correct-order-of-reactivity-of-mg-a\/","og_locale":"en_US","og_type":"article","og_title":"Which one of the following is the correct order of reactivity of Mg, A","og_description":"The reactivity of metals with dilute acids like HCl to displace hydrogen depends on the position of the metal in the reactivity series. Metals higher in the series are more reactive. The standard reactivity series (based on standard electrode potentials) places these metals in the order of decreasing reactivity as Mg > Al > Zn > Fe > H. Therefore, their reactivity with HCl follows the same order: Mg > Al > Zn > Fe.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-correct-order-of-reactivity-of-mg-a\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T03:18:38+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\/which-one-of-the-following-is-the-correct-order-of-reactivity-of-mg-a\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-correct-order-of-reactivity-of-mg-a\/","name":"Which one of the following is the correct order of reactivity of Mg, A","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T03:18:38+00:00","dateModified":"2025-06-01T03:18:38+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The reactivity of metals with dilute acids like HCl to displace hydrogen depends on the position of the metal in the reactivity series. Metals higher in the series are more reactive. The standard reactivity series (based on standard electrode potentials) places these metals in the order of decreasing reactivity as Mg > Al > Zn > Fe > H. Therefore, their reactivity with HCl follows the same order: Mg > Al > Zn > Fe.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-correct-order-of-reactivity-of-mg-a\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-correct-order-of-reactivity-of-mg-a\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-correct-order-of-reactivity-of-mg-a\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC CDS-1","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-cds-1\/"},{"@type":"ListItem","position":3,"name":"Which one of the following is the correct order of reactivity of Mg, A"}]},{"@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\/85485","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=85485"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/85485\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=85485"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=85485"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=85485"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}