{"id":85219,"date":"2025-06-01T03:08:02","date_gmt":"2025-06-01T03:08:02","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=85219"},"modified":"2025-06-01T03:08:02","modified_gmt":"2025-06-01T03:08:02","slug":"which-one-of-the-following-is-not-an-example-of-an-oxidation-reaction","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-not-an-example-of-an-oxidation-reaction\/","title":{"rendered":"Which one of the following is not an example of an oxidation reaction"},"content":{"rendered":"

Which one of the following is not an example of an oxidation reaction ?<\/p>\n

[amp_mcq option1=”The taste of butter changes if left for a longer period” option2=”A white substance is formed when an aqueous solution of barium chloride is mixed with sodium sulphate solution” option3=”A reddish-brown powder gets coated on articles made of iron” option4=”Wine gets sour with time” correct=”option2″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC CDS-1 – 2022<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe reaction where a white substance (BaSO4) is formed when barium chloride solution is mixed with sodium sulphate solution is a double displacement reaction (precipitation). In this type of reaction, ions are exchanged between two compounds, but there is typically no change in the oxidation states of the elements involved, meaning it is not an oxidation-reduction (redox) reaction.
\n<\/section>\n
\nOxidation is a chemical process involving the loss of electrons, gain of oxygen, or loss of hydrogen. Redox reactions involve both oxidation and reduction. Precipitation reactions, where insoluble salts form from the mixing of solutions, are generally non-redox reactions if the oxidation states of the ions remain unchanged.
\n<\/section>\n
\nA) Rancidity of butter is due to oxidation of fats. C) Rusting of iron involves the oxidation of iron. D) Wine turning sour (acetification) is the oxidation of ethanol to acetic acid. These are all examples of oxidation reactions (specifically, redox processes). The reaction BaCl2(aq) + Na2SO4(aq) -> BaSO4(s) + 2NaCl(aq) is a pure double displacement (precipitation) reaction without electron transfer between reacting species.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following is not an example of an oxidation reaction ? [amp_mcq option1=”The taste of butter changes if left for a longer period” option2=”A white substance is formed when an aqueous solution of barium chloride is mixed with sodium sulphate solution” option3=”A reddish-brown powder gets coated on articles made of iron” option4=”Wine … <\/p>\n

Detailed SolutionWhich one of the following is not an example of an oxidation reaction<\/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":[1108,1096,1155],"class_list":["post-85219","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-1","tag-1108","tag-chemistry","tag-physical-and-chemical-changes-solution","no-featured-image-padding"],"yoast_head":"\nWhich one of the following is not an example of an oxidation reaction<\/title>\n<meta name=\"description\" content=\"The reaction where a white substance (BaSO4) is formed when barium chloride solution is mixed with sodium sulphate solution is a double displacement reaction (precipitation). In this type of reaction, ions are exchanged between two compounds, but there is typically no change in the oxidation states of the elements involved, meaning it is not an oxidation-reduction (redox) reaction. Oxidation is a chemical process involving the loss of electrons, gain of oxygen, or loss of hydrogen. Redox reactions involve both oxidation and reduction. Precipitation reactions, where insoluble salts form from the mixing of solutions, are generally non-redox reactions if the oxidation states of the ions remain unchanged.\" \/>\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-not-an-example-of-an-oxidation-reaction\/\" \/>\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 not an example of an oxidation reaction\" \/>\n<meta property=\"og:description\" content=\"The reaction where a white substance (BaSO4) is formed when barium chloride solution is mixed with sodium sulphate solution is a double displacement reaction (precipitation). In this type of reaction, ions are exchanged between two compounds, but there is typically no change in the oxidation states of the elements involved, meaning it is not an oxidation-reduction (redox) reaction. Oxidation is a chemical process involving the loss of electrons, gain of oxygen, or loss of hydrogen. Redox reactions involve both oxidation and reduction. Precipitation reactions, where insoluble salts form from the mixing of solutions, are generally non-redox reactions if the oxidation states of the ions remain unchanged.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-not-an-example-of-an-oxidation-reaction\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T03:08:02+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 not an example of an oxidation reaction","description":"The reaction where a white substance (BaSO4) is formed when barium chloride solution is mixed with sodium sulphate solution is a double displacement reaction (precipitation). In this type of reaction, ions are exchanged between two compounds, but there is typically no change in the oxidation states of the elements involved, meaning it is not an oxidation-reduction (redox) reaction. Oxidation is a chemical process involving the loss of electrons, gain of oxygen, or loss of hydrogen. Redox reactions involve both oxidation and reduction. Precipitation reactions, where insoluble salts form from the mixing of solutions, are generally non-redox reactions if the oxidation states of the ions remain unchanged.","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-not-an-example-of-an-oxidation-reaction\/","og_locale":"en_US","og_type":"article","og_title":"Which one of the following is not an example of an oxidation reaction","og_description":"The reaction where a white substance (BaSO4) is formed when barium chloride solution is mixed with sodium sulphate solution is a double displacement reaction (precipitation). In this type of reaction, ions are exchanged between two compounds, but there is typically no change in the oxidation states of the elements involved, meaning it is not an oxidation-reduction (redox) reaction. Oxidation is a chemical process involving the loss of electrons, gain of oxygen, or loss of hydrogen. Redox reactions involve both oxidation and reduction. Precipitation reactions, where insoluble salts form from the mixing of solutions, are generally non-redox reactions if the oxidation states of the ions remain unchanged.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-not-an-example-of-an-oxidation-reaction\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T03:08:02+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-not-an-example-of-an-oxidation-reaction\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-not-an-example-of-an-oxidation-reaction\/","name":"Which one of the following is not an example of an oxidation reaction","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T03:08:02+00:00","dateModified":"2025-06-01T03:08:02+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The reaction where a white substance (BaSO4) is formed when barium chloride solution is mixed with sodium sulphate solution is a double displacement reaction (precipitation). In this type of reaction, ions are exchanged between two compounds, but there is typically no change in the oxidation states of the elements involved, meaning it is not an oxidation-reduction (redox) reaction. Oxidation is a chemical process involving the loss of electrons, gain of oxygen, or loss of hydrogen. Redox reactions involve both oxidation and reduction. Precipitation reactions, where insoluble salts form from the mixing of solutions, are generally non-redox reactions if the oxidation states of the ions remain unchanged.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-not-an-example-of-an-oxidation-reaction\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-not-an-example-of-an-oxidation-reaction\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-not-an-example-of-an-oxidation-reaction\/#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 not an example of an oxidation reaction"}]},{"@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\/85219","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=85219"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/85219\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=85219"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=85219"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=85219"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}