{"id":89514,"date":"2025-06-01T10:06:08","date_gmt":"2025-06-01T10:06:08","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=89514"},"modified":"2025-06-01T10:06:08","modified_gmt":"2025-06-01T10:06:08","slug":"if-four-balloons-a-b-c-and-d-are-filled-with-hydrogen-oxygen-heliu","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/if-four-balloons-a-b-c-and-d-are-filled-with-hydrogen-oxygen-heliu\/","title":{"rendered":"If four balloons A, B, C and D are filled with hydrogen, oxygen, heliu"},"content":{"rendered":"

If four balloons A, B, C and D are filled with hydrogen, oxygen, helium and nitrogen gases respectively and left in air, which balloon reaches to the highest distance from the Earth?<\/p>\n

[amp_mcq option1=”Balloon A” option2=”Balloon B” option3=”Balloon C” option4=”Balloon D” correct=”option1″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC CAPF – 2012<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
A balloon filled with a gas lighter than air will rise. The higher it will reach (or the more buoyant it will be) depends on the density of the gas relative to the density of the surrounding air. The lighter the gas, the greater the buoyant force. The average molecular weight of air is approximately 29 g\/mol.<\/section>\n
Comparing the molecular\/atomic weights of the gases: Hydrogen (H\u2082) \u2248 2 g\/mol, Oxygen (O\u2082) \u2248 32 g\/mol, Helium (He) \u2248 4 g\/mol, Nitrogen (N\u2082) \u2248 28 g\/mol. Oxygen is heavier than air and will sink. Nitrogen is slightly lighter than air. Hydrogen and Helium are significantly lighter than air. Hydrogen is the lightest among the given gases.<\/section>\n
Since Hydrogen is the lightest gas among the options and significantly lighter than air, a balloon filled with hydrogen will experience the greatest buoyant force and is expected to rise to the highest altitude compared to balloons filled with Oxygen, Helium, or Nitrogen (assuming balloon material weight and other factors are equal).<\/section>\n","protected":false},"excerpt":{"rendered":"

If four balloons A, B, C and D are filled with hydrogen, oxygen, helium and nitrogen gases respectively and left in air, which balloon reaches to the highest distance from the Earth? [amp_mcq option1=”Balloon A” option2=”Balloon B” option3=”Balloon C” option4=”Balloon D” correct=”option1″] This question was previously asked in UPSC CAPF – 2012 Download PDFAttempt Online … <\/p>\n

Detailed SolutionIf four balloons A, B, C and D are filled with hydrogen, oxygen, heliu<\/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":[1085],"tags":[1116,1129,1128],"class_list":["post-89514","post","type-post","status-publish","format-standard","hentry","category-upsc-capf","tag-1116","tag-mechanics","tag-physics","no-featured-image-padding"],"yoast_head":"\nIf four balloons A, B, C and D are filled with hydrogen, oxygen, heliu<\/title>\n<meta name=\"description\" content=\"A balloon filled with a gas lighter than air will rise. The higher it will reach (or the more buoyant it will be) depends on the density of the gas relative to the density of the surrounding air. The lighter the gas, the greater the buoyant force. The average molecular weight of air is approximately 29 g\/mol. Comparing the molecular\/atomic weights of the gases: Hydrogen (H\u2082) \u2248 2 g\/mol, Oxygen (O\u2082) \u2248 32 g\/mol, Helium (He) \u2248 4 g\/mol, Nitrogen (N\u2082) \u2248 28 g\/mol. Oxygen is heavier than air and will sink. Nitrogen is slightly lighter than air. Hydrogen and Helium are significantly lighter than air. Hydrogen is the lightest among the given gases.\" \/>\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\/if-four-balloons-a-b-c-and-d-are-filled-with-hydrogen-oxygen-heliu\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"If four balloons A, B, C and D are filled with hydrogen, oxygen, heliu\" \/>\n<meta property=\"og:description\" content=\"A balloon filled with a gas lighter than air will rise. The higher it will reach (or the more buoyant it will be) depends on the density of the gas relative to the density of the surrounding air. The lighter the gas, the greater the buoyant force. The average molecular weight of air is approximately 29 g\/mol. Comparing the molecular\/atomic weights of the gases: Hydrogen (H\u2082) \u2248 2 g\/mol, Oxygen (O\u2082) \u2248 32 g\/mol, Helium (He) \u2248 4 g\/mol, Nitrogen (N\u2082) \u2248 28 g\/mol. Oxygen is heavier than air and will sink. Nitrogen is slightly lighter than air. Hydrogen and Helium are significantly lighter than air. Hydrogen is the lightest among the given gases.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/if-four-balloons-a-b-c-and-d-are-filled-with-hydrogen-oxygen-heliu\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T10:06:08+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":"If four balloons A, B, C and D are filled with hydrogen, oxygen, heliu","description":"A balloon filled with a gas lighter than air will rise. The higher it will reach (or the more buoyant it will be) depends on the density of the gas relative to the density of the surrounding air. The lighter the gas, the greater the buoyant force. The average molecular weight of air is approximately 29 g\/mol. Comparing the molecular\/atomic weights of the gases: Hydrogen (H\u2082) \u2248 2 g\/mol, Oxygen (O\u2082) \u2248 32 g\/mol, Helium (He) \u2248 4 g\/mol, Nitrogen (N\u2082) \u2248 28 g\/mol. Oxygen is heavier than air and will sink. Nitrogen is slightly lighter than air. Hydrogen and Helium are significantly lighter than air. Hydrogen is the lightest among the given gases.","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\/if-four-balloons-a-b-c-and-d-are-filled-with-hydrogen-oxygen-heliu\/","og_locale":"en_US","og_type":"article","og_title":"If four balloons A, B, C and D are filled with hydrogen, oxygen, heliu","og_description":"A balloon filled with a gas lighter than air will rise. The higher it will reach (or the more buoyant it will be) depends on the density of the gas relative to the density of the surrounding air. The lighter the gas, the greater the buoyant force. The average molecular weight of air is approximately 29 g\/mol. Comparing the molecular\/atomic weights of the gases: Hydrogen (H\u2082) \u2248 2 g\/mol, Oxygen (O\u2082) \u2248 32 g\/mol, Helium (He) \u2248 4 g\/mol, Nitrogen (N\u2082) \u2248 28 g\/mol. Oxygen is heavier than air and will sink. Nitrogen is slightly lighter than air. Hydrogen and Helium are significantly lighter than air. Hydrogen is the lightest among the given gases.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/if-four-balloons-a-b-c-and-d-are-filled-with-hydrogen-oxygen-heliu\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T10:06:08+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\/if-four-balloons-a-b-c-and-d-are-filled-with-hydrogen-oxygen-heliu\/","url":"https:\/\/exam.pscnotes.com\/mcq\/if-four-balloons-a-b-c-and-d-are-filled-with-hydrogen-oxygen-heliu\/","name":"If four balloons A, B, C and D are filled with hydrogen, oxygen, heliu","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T10:06:08+00:00","dateModified":"2025-06-01T10:06:08+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"A balloon filled with a gas lighter than air will rise. The higher it will reach (or the more buoyant it will be) depends on the density of the gas relative to the density of the surrounding air. The lighter the gas, the greater the buoyant force. The average molecular weight of air is approximately 29 g\/mol. Comparing the molecular\/atomic weights of the gases: Hydrogen (H\u2082) \u2248 2 g\/mol, Oxygen (O\u2082) \u2248 32 g\/mol, Helium (He) \u2248 4 g\/mol, Nitrogen (N\u2082) \u2248 28 g\/mol. Oxygen is heavier than air and will sink. Nitrogen is slightly lighter than air. Hydrogen and Helium are significantly lighter than air. Hydrogen is the lightest among the given gases.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/if-four-balloons-a-b-c-and-d-are-filled-with-hydrogen-oxygen-heliu\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/if-four-balloons-a-b-c-and-d-are-filled-with-hydrogen-oxygen-heliu\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/if-four-balloons-a-b-c-and-d-are-filled-with-hydrogen-oxygen-heliu\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC CAPF","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-capf\/"},{"@type":"ListItem","position":3,"name":"If four balloons A, B, C and D are filled with hydrogen, oxygen, heliu"}]},{"@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\/89514","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=89514"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/89514\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=89514"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=89514"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=89514"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}