{"id":223829,"date":"2025-06-02T11:54:39","date_gmt":"2025-06-02T11:54:39","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=223829"},"modified":"2025-06-02T11:54:41","modified_gmt":"2025-06-02T11:54:41","slug":"match-the-following-compounds-to-their-likely-solubility-in-water","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/06\/02\/match-the-following-compounds-to-their-likely-solubility-in-water\/","title":{"rendered":"Match the following compounds to their likely solubility in water"},"content":{"rendered":"\n<p>Match the following compounds to their likely solubility in water: -KI -Cl2 -C2H5OH<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-1-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Correct Matching of Compounds to Their Likely Solubility in Water:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>KI<\/strong> \u2013 <em>Soluble<\/em><\/li>\n\n\n\n<li><strong>Cl\u2082 (Chlorine gas)<\/strong> \u2013 <em>Insoluble (Slightly soluble)<\/em><\/li>\n\n\n\n<li><strong>C\u2082H\u2085OH (Ethanol)<\/strong> \u2013 <em>Soluble<\/em><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation (Approx. 300 words):<\/h3>\n\n\n\n<p>Water is a <strong>polar solvent<\/strong>, meaning it has molecules with partial positive and negative charges due to its bent structure and the electronegativity difference between hydrogen and oxygen. The general rule for solubility is <strong>\u201clike dissolves like\u201d<\/strong>\u2014polar substances tend to dissolve in polar solvents, and nonpolar substances dissolve in nonpolar solvents.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">1. <strong>Potassium Iodide (KI): Soluble<\/strong><\/h4>\n\n\n\n<p>KI is an <strong>ionic compound<\/strong>, composed of K\u207a and I\u207b ions. Ionic compounds generally dissolve well in water because the polar water molecules surround and stabilize the individual ions through a process called <strong>hydration<\/strong>. The partial negative end (oxygen) of water is attracted to K\u207a, and the partial positive end (hydrogen) is attracted to I\u207b. This effectively pulls the crystal lattice apart, making KI highly soluble in water.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">2. <strong>Chlorine (Cl\u2082): Slightly Soluble<\/strong><\/h4>\n\n\n\n<p>Cl\u2082 is a <strong>nonpolar covalent molecule<\/strong>, composed of two identical chlorine atoms sharing electrons equally. Since water is polar and Cl\u2082 is nonpolar, there are minimal intermolecular interactions between them. Cl\u2082 has very limited solubility in water (approximately 0.7 g\/L at 20\u00b0C), and it only dissolves to a small extent due to physical dispersion and minor chemical reactions (e.g., forming hypochlorous acid). Therefore, it&#8217;s classified as <strong>insoluble or only slightly soluble<\/strong> in water.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">3. <strong>Ethanol (C\u2082H\u2085OH): Soluble<\/strong><\/h4>\n\n\n\n<p>Ethanol contains a <strong>polar hydroxyl group (-OH)<\/strong> which can form <strong>hydrogen bonds<\/strong> with water molecules. Although the ethyl group (C\u2082H\u2085\u2013) is nonpolar, it is small enough that the overall molecule remains highly soluble in water. This balance makes ethanol <strong>miscible<\/strong> with water, meaning it can mix in any proportion.<\/p>\n\n\n\n<p>Thus, based on molecular structure and polarity, KI and ethanol are soluble, while Cl\u2082 is not.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner5-26.jpeg\" alt=\"\" class=\"wp-image-223830\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Match the following compounds to their likely solubility in water: -KI -Cl2 -C2H5OH The Correct Answer and Explanation is: Correct Matching of Compounds to Their Likely Solubility in Water: Explanation (Approx. 300 words): Water is a polar solvent, meaning it has molecules with partial positive and negative charges due to its bent structure and the [&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-223829","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/223829","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=223829"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/223829\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=223829"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=223829"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=223829"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}