{"id":133286,"date":"2024-08-22T18:56:54","date_gmt":"2024-08-22T18:56:54","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=133286"},"modified":"2024-08-22T18:56:56","modified_gmt":"2024-08-22T18:56:56","slug":"the-positive-control-for-the-iodine-test-was-the","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2024\/08\/22\/the-positive-control-for-the-iodine-test-was-the\/","title":{"rendered":"The positive control for the iodine test was the"},"content":{"rendered":"\n<p>The positive control for the iodine test was the<\/p>\n\n\n\n<p>A.<br>Distilled water<\/p>\n\n\n\n<p>B.<br>Olive oil<\/p>\n\n\n\n<p>C.<br>Albumin solution<\/p>\n\n\n\n<p>D.<br>Starch solution<\/p>\n\n\n\n<p>The positive control for the iodine test is:<\/p>\n\n\n\n<p><strong>D. Starch solution<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>The iodine test (or iodine-starch test) is used to detect the presence of starch. Iodine reacts with starch to produce a blue-black color. Therefore, a starch solution is used as a positive control because it reliably produces a color change when iodine is added, indicating the presence of starch.<\/p>\n\n\n\n<p>Here\u2019s why the other options are not appropriate as a positive control for this test:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>A. Distilled water:<\/strong> This does not contain starch and would not produce a color change with iodine.<\/li>\n\n\n\n<li><strong>B. Olive oil:<\/strong> This is a fat and does not contain starch, so it would not give a positive result with iodine.<\/li>\n\n\n\n<li><strong>C. Albumin solution:<\/strong> This is a protein and does not react with iodine to give a color change, so it is not suitable for this test.<\/li>\n<\/ul>\n\n\n\n<p>Thus, <strong>D. Starch solution<\/strong> is the correct positive control for the iodine test.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The positive control for the iodine test was the A.Distilled water B.Olive oil C.Albumin solution D.Starch solution The positive control for the iodine test is: D. Starch solution Explanation: The iodine test (or iodine-starch test) is used to detect the presence of starch. Iodine reacts with starch to produce a blue-black color. Therefore, a starch [&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-133286","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/133286","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=133286"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/133286\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=133286"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=133286"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=133286"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}