{"id":87281,"date":"2025-06-01T06:39:14","date_gmt":"2025-06-01T06:39:14","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=87281"},"modified":"2025-06-01T06:39:14","modified_gmt":"2025-06-01T06:39:14","slug":"which-one-among-the-following-does-not-wet-the-walls-of-the-glass-vess","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-among-the-following-does-not-wet-the-walls-of-the-glass-vess\/","title":{"rendered":"Which one among the following does not wet the walls of the glass vess"},"content":{"rendered":"

Which one among the following does not wet the walls of the glass vessel in which it is kept ?<\/p>\n

[amp_mcq option1=”Water” option2=”Alcohol” option3=”Mercury” option4=”Phenol” correct=”option3″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC NDA-1 – 2015<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
Whether a liquid wets a solid surface depends on the balance between adhesive forces (attraction between liquid molecules and solid surface) and cohesive forces (attraction between liquid molecules). Water, alcohol, and phenol have adhesive forces with glass that are stronger than their internal cohesive forces, causing them to spread out and wet the glass surface. Mercury, on the other hand, has very strong cohesive forces (due to metallic bonding) that are much stronger than the adhesive forces between mercury and glass. Therefore, mercury minimizes its contact area with the glass, forming a convex meniscus and does not wet the glass.<\/section>\n
Wetting is determined by the relative strengths of adhesive forces between the liquid and the solid and cohesive forces within the liquid.<\/section>\n
A liquid wets a surface if the angle of contact between the liquid and the solid is less than 90 degrees. A liquid does not wet a surface if the angle of contact is greater than 90 degrees (as is the case with mercury on glass, where it is obtuse).<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one among the following does not wet the walls of the glass vessel in which it is kept ? [amp_mcq option1=”Water” option2=”Alcohol” option3=”Mercury” option4=”Phenol” correct=”option3″] This question was previously asked in UPSC NDA-1 – 2015 Download PDFAttempt Online Whether a liquid wets a solid surface depends on the balance between adhesive forces (attraction between … <\/p>\n

Detailed SolutionWhich one among the following does not wet the walls of the glass vess<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1093],"tags":[1443,1160,1128],"class_list":["post-87281","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-1","tag-1443","tag-physical-properties-of-materials","tag-physics","no-featured-image-padding"],"yoast_head":"\nWhich one among the following does not wet the walls of the glass vess<\/title>\n<meta name=\"description\" content=\"Whether a liquid wets a solid surface depends on the balance between adhesive forces (attraction between liquid molecules and solid surface) and cohesive forces (attraction between liquid molecules). Water, alcohol, and phenol have adhesive forces with glass that are stronger than their internal cohesive forces, causing them to spread out and wet the glass surface. Mercury, on the other hand, has very strong cohesive forces (due to metallic bonding) that are much stronger than the adhesive forces between mercury and glass. Therefore, mercury minimizes its contact area with the glass, forming a convex meniscus and does not wet the glass. Wetting is determined by the relative strengths of adhesive forces between the liquid and the solid and cohesive forces within the liquid.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-among-the-following-does-not-wet-the-walls-of-the-glass-vess\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which one among the following does not wet the walls of the glass vess\" \/>\n<meta property=\"og:description\" content=\"Whether a liquid wets a solid surface depends on the balance between adhesive forces (attraction between liquid molecules and solid surface) and cohesive forces (attraction between liquid molecules). Water, alcohol, and phenol have adhesive forces with glass that are stronger than their internal cohesive forces, causing them to spread out and wet the glass surface. Mercury, on the other hand, has very strong cohesive forces (due to metallic bonding) that are much stronger than the adhesive forces between mercury and glass. Therefore, mercury minimizes its contact area with the glass, forming a convex meniscus and does not wet the glass. Wetting is determined by the relative strengths of adhesive forces between the liquid and the solid and cohesive forces within the liquid.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-among-the-following-does-not-wet-the-walls-of-the-glass-vess\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T06:39:14+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Which one among the following does not wet the walls of the glass vess","description":"Whether a liquid wets a solid surface depends on the balance between adhesive forces (attraction between liquid molecules and solid surface) and cohesive forces (attraction between liquid molecules). Water, alcohol, and phenol have adhesive forces with glass that are stronger than their internal cohesive forces, causing them to spread out and wet the glass surface. Mercury, on the other hand, has very strong cohesive forces (due to metallic bonding) that are much stronger than the adhesive forces between mercury and glass. Therefore, mercury minimizes its contact area with the glass, forming a convex meniscus and does not wet the glass. Wetting is determined by the relative strengths of adhesive forces between the liquid and the solid and cohesive forces within the liquid.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/which-one-among-the-following-does-not-wet-the-walls-of-the-glass-vess\/","og_locale":"en_US","og_type":"article","og_title":"Which one among the following does not wet the walls of the glass vess","og_description":"Whether a liquid wets a solid surface depends on the balance between adhesive forces (attraction between liquid molecules and solid surface) and cohesive forces (attraction between liquid molecules). Water, alcohol, and phenol have adhesive forces with glass that are stronger than their internal cohesive forces, causing them to spread out and wet the glass surface. Mercury, on the other hand, has very strong cohesive forces (due to metallic bonding) that are much stronger than the adhesive forces between mercury and glass. Therefore, mercury minimizes its contact area with the glass, forming a convex meniscus and does not wet the glass. Wetting is determined by the relative strengths of adhesive forces between the liquid and the solid and cohesive forces within the liquid.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-among-the-following-does-not-wet-the-walls-of-the-glass-vess\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T06:39:14+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/which-one-among-the-following-does-not-wet-the-walls-of-the-glass-vess\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-among-the-following-does-not-wet-the-walls-of-the-glass-vess\/","name":"Which one among the following does not wet the walls of the glass vess","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T06:39:14+00:00","dateModified":"2025-06-01T06:39:14+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Whether a liquid wets a solid surface depends on the balance between adhesive forces (attraction between liquid molecules and solid surface) and cohesive forces (attraction between liquid molecules). Water, alcohol, and phenol have adhesive forces with glass that are stronger than their internal cohesive forces, causing them to spread out and wet the glass surface. Mercury, on the other hand, has very strong cohesive forces (due to metallic bonding) that are much stronger than the adhesive forces between mercury and glass. Therefore, mercury minimizes its contact area with the glass, forming a convex meniscus and does not wet the glass. Wetting is determined by the relative strengths of adhesive forces between the liquid and the solid and cohesive forces within the liquid.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/which-one-among-the-following-does-not-wet-the-walls-of-the-glass-vess\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/which-one-among-the-following-does-not-wet-the-walls-of-the-glass-vess\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/which-one-among-the-following-does-not-wet-the-walls-of-the-glass-vess\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC NDA-1","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-nda-1\/"},{"@type":"ListItem","position":3,"name":"Which one among the following does not wet the walls of the glass vess"}]},{"@type":"WebSite","@id":"https:\/\/exam.pscnotes.com\/mcq\/#website","url":"https:\/\/exam.pscnotes.com\/mcq\/","name":"MCQ and Quiz for Exams","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/exam.pscnotes.com\/mcq\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209","name":"rawan239","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","caption":"rawan239"},"sameAs":["https:\/\/exam.pscnotes.com"],"url":"https:\/\/exam.pscnotes.com\/mcq\/author\/rawan239\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/87281","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/comments?post=87281"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/87281\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=87281"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=87281"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=87281"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}