Correct Answer: D. Hydrogen chloride<\/strong><\/p>\n\n\n\n A mixture<\/strong> is a combination of two or more substances where each substance retains its own chemical identity and properties. Mixtures can be homogeneous<\/strong> (uniform composition throughout, like saltwater) or heterogeneous<\/strong> (non-uniform composition, like salad). In contrast, a pure substance<\/strong> has a uniform and definite composition. Pure substances can be elements<\/strong> (like oxygen) or compounds<\/strong> (like water, H\u2082O).<\/p>\n\n\n\n Now, let’s examine each option:<\/p>\n\n\n\n Among the options, only hydrogen chloride<\/strong> is a pure substance<\/strong> and not a mixture<\/strong>. Therefore, option D<\/strong> is the correct answer.<\/p>\n\n\n\n Which of the following is not a mixture? A. antibiotic B. Evaporated milk C. brewed coffee D. Hydrogen chlorideWhich of the following is not a mixture? A. antibiotic B. Evaporated milk C. brewed coffee D. Hydrogen chloride The Correct Answer and Explanation is: Correct Answer: D. Hydrogen chloride Explanation: A mixture is a combination of […]<\/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-222668","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/222668","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=222668"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/222668\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=222668"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=222668"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=222668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Explanation:<\/h3>\n\n\n\n
\n
Antibiotics, such as amoxicillin or penicillin, are often dispensed in formulations that contain active pharmaceutical ingredients (APIs) mixed with binders, fillers, and other inactive components. As such, commercially available antibiotics are mixtures<\/strong> of various chemical substances.<\/li>\n\n\n\n
Evaporated milk is made by removing about 60% of the water from regular milk. It still contains fats, proteins, sugars (like lactose), and minerals. Because it contains various compounds not chemically bonded together, it is a homogeneous mixture<\/strong>.<\/li>\n\n\n\n
Brewed coffee is an aqueous solution containing hundreds of different dissolved substances (e.g., caffeine, oils, acids). It is a mixture<\/strong>, particularly a homogeneous one if filtered, though it may be heterogeneous if unfiltered (e.g., with coffee grounds).<\/li>\n\n\n\n
Hydrogen chloride is a pure compound<\/strong>, composed of hydrogen and chlorine atoms chemically bonded in a 1:1 ratio. It has a fixed chemical formula (HCl) and specific properties. It is not a mixture<\/strong>, but a compound<\/strong>.<\/li>\n<\/ul>\n\n\n\nConclusion:<\/h3>\n\n\n\n
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