{"id":34241,"date":"2025-06-23T14:23:32","date_gmt":"2025-06-23T14:23:32","guid":{"rendered":"https:\/\/gaviki.com\/blog\/?p=34241"},"modified":"2025-06-23T14:23:33","modified_gmt":"2025-06-23T14:23:33","slug":"do-the-molecules-below-have-a-permanent-electric-dipole-moment","status":"publish","type":"post","link":"https:\/\/gaviki.com\/blog\/do-the-molecules-below-have-a-permanent-electric-dipole-moment\/","title":{"rendered":"Do the molecules below have a permanent electric dipole moment"},"content":{"rendered":"\n<p>Do the molecules below have a permanent electric dipole moment? H-0-H 0 b) H C :OH<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"621\" src=\"https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/image-256.png\" alt=\"\" class=\"wp-image-34242\" srcset=\"https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/image-256.png 1024w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/image-256-300x182.png 300w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/image-256-768x466.png 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n<p>Yes, both molecules\u2014water (H\u2013O\u2013H) and formaldehyde (H\u2013C=O) or methanol with a hydroxyl group (depending on your notation)\u2014have permanent electric dipole moments.<\/p>\n\n\n\n<p><strong>Water (H\u2013O\u2013H):<\/strong> Water has a bent molecular geometry with an angle of approximately 104.5 degrees. The oxygen atom is significantly more electronegative than hydrogen, drawing shared electrons closer to itself and creating a partial negative charge. Each O\u2013H bond is polar, and because the molecule is bent, these bond dipoles do not cancel. Instead, they combine to give a net dipole moment pointing from the hydrogen atoms toward the oxygen. This makes water a classic example of a molecule with a permanent dipole moment. Its polarity is responsible for many of its unusual properties, such as high boiling point and strong cohesion.<\/p>\n\n\n\n<p><strong>Formaldehyde or Methanol Derivative (H\u2013C=O or H\u2013C\u2013OH):<\/strong> Formaldehyde (H\u2013C=O) consists of a carbon doubly bonded to oxygen and singly bonded to two hydrogen atoms. The geometry around the central carbon is trigonal planar, and the oxygen is much more electronegative than carbon. This results in a strongly polarized C=O bond. Although the two C\u2013H bonds are less polar and symmetrically arranged, their dipole contributions do not completely cancel the larger C=O dipole. As a result, formaldehyde has a net dipole moment pointing toward the oxygen atom.<\/p>\n\n\n\n<p>If your structure was intended to represent methanol (H\u2013C\u2013OH), this molecule also has a permanent dipole moment. The O\u2013H bond is polar, and so is the C\u2013O bond. Given the molecular geometry, these dipoles do not cancel, leading to an overall polarity in the direction of the oxygen.<\/p>\n\n\n\n<p>Permanent dipole moments arise when polar bonds are arranged asymmetrically, preventing cancellation of individual dipole vectors. Molecular geometry and electronegativity differences are key in predicting such behavior.<\/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-banner8-573.jpeg\" alt=\"\" class=\"wp-image-34243\" srcset=\"https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-573.jpeg 852w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-573-250x300.jpeg 250w, https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner8-573-768x923.jpeg 768w\" sizes=\"auto, (max-width: 852px) 100vw, 852px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Do the molecules below have a permanent electric dipole moment? H-0-H 0 b) H C :OH The Correct Answer and Explanation is: Yes, both molecules\u2014water (H\u2013O\u2013H) and formaldehyde (H\u2013C=O) or methanol with a hydroxyl group (depending on your notation)\u2014have permanent electric dipole moments. Water (H\u2013O\u2013H): Water has a bent molecular geometry with an angle of [&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-34241","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/34241","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=34241"}],"version-history":[{"count":2,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/34241\/revisions"}],"predecessor-version":[{"id":34245,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/34241\/revisions\/34245"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=34241"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=34241"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=34241"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}