{"id":28900,"date":"2025-06-20T17:12:04","date_gmt":"2025-06-20T17:12:04","guid":{"rendered":"https:\/\/gaviki.com\/blog\/?p=28900"},"modified":"2025-06-20T17:12:05","modified_gmt":"2025-06-20T17:12:05","slug":"which-of-the-compounds-is-more-soluble-in-an-acidic-solution-than-in-pure-water","status":"publish","type":"post","link":"https:\/\/gaviki.com\/blog\/which-of-the-compounds-is-more-soluble-in-an-acidic-solution-than-in-pure-water\/","title":{"rendered":"Which of the compounds is more soluble in an acidic solution than in pure water"},"content":{"rendered":"\n<p>Which of the compounds is more soluble in an acidic solution than in pure water? CuCl CuCN Zn(OH)2 KClO4 SrS<\/p>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-purple-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p><strong>Correct Answer: Zn(OH)\u2082 and SrS<\/strong><\/p>\n\n\n\n<p><strong>Explanation:<\/strong><\/p>\n\n\n\n<p>To determine which compounds are more soluble in an acidic solution than in pure water, consider how they react with hydrogen ions (H\u207a) from acids. Compounds that contain basic anions or behave like bases will generally be more soluble in acidic solutions because they react with H\u207a, forming neutral or less soluble species and shifting equilibrium to dissolve more of the solid.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. <strong>Zn(OH)\u2082 (Zinc hydroxide)<\/strong><\/h3>\n\n\n\n<p>Zinc hydroxide is a sparingly soluble base. In water, it partially dissociates into Zn\u00b2\u207a and OH\u207b.<br>In an acidic solution, H\u207a reacts with OH\u207b to form water:<\/p>\n\n\n\n<p><strong>OH\u207b + H\u207a \u2192 H\u2082O<\/strong><\/p>\n\n\n\n<p>This removal of OH\u207b shifts the equilibrium to dissolve more Zn(OH)\u2082. Therefore, <strong>Zn(OH)\u2082 is more soluble in acidic solution<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. <strong>SrS (Strontium sulfide)<\/strong><\/h3>\n\n\n\n<p>Strontium sulfide dissociates into Sr\u00b2\u207a and S\u00b2\u207b ions. The sulfide ion (S\u00b2\u207b) is a strong base and reacts with H\u207a in acid:<\/p>\n\n\n\n<p><strong>S\u00b2\u207b + 2H\u207a \u2192 H\u2082S (gas)<\/strong><\/p>\n\n\n\n<p>This reaction reduces the concentration of S\u00b2\u207b, shifting the equilibrium toward more dissolution of SrS. Hence, <strong>SrS is also more soluble in acidic solution<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Why the Others Are Not More Soluble:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>CuCl (Copper(I) chloride):<\/strong> It contains Cl\u207b, which is the conjugate base of a strong acid (HCl) and does not react with H\u207a, so its solubility does not increase significantly in acid.<\/li>\n\n\n\n<li><strong>CuCN (Copper(I) cyanide):<\/strong> CN\u207b can react with H\u207a to form HCN, but CuCN is highly insoluble and forms complex ions. The situation is complex and does not guarantee increased solubility in acid due to the stability of the solid and potential formation of complex ions.<\/li>\n\n\n\n<li><strong>KClO\u2084 (Potassium perchlorate):<\/strong> ClO\u2084\u207b is the conjugate base of a very strong acid (HClO\u2084) and does not react with H\u207a. Its solubility remains unchanged in acidic conditions.<\/li>\n<\/ul>\n\n\n\n<p><strong>Conclusion:<\/strong> <strong>Zn(OH)\u2082 and SrS<\/strong> are more soluble in acidic solutions because they contain basic anions (OH\u207b and S\u00b2\u207b) that react with H\u207a, enhancing dissolution.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"852\" height=\"1024\" src=\"https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-271.jpeg\" alt=\"\" class=\"wp-image-28904\" srcset=\"https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-271.jpeg 852w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-271-250x300.jpeg 250w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-271-768x923.jpeg 768w\" sizes=\"auto, (max-width: 852px) 100vw, 852px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Which of the compounds is more soluble in an acidic solution than in pure water? CuCl CuCN Zn(OH)2 KClO4 SrS The Correct Answer and Explanation is: Correct Answer: Zn(OH)\u2082 and SrS Explanation: To determine which compounds are more soluble in an acidic solution than in pure water, consider how they react with hydrogen ions (H\u207a) [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-28900","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/28900","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/comments?post=28900"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/28900\/revisions"}],"predecessor-version":[{"id":28908,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/28900\/revisions\/28908"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=28900"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=28900"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=28900"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}