{"id":88782,"date":"2025-06-01T07:21:07","date_gmt":"2025-06-01T07:21:07","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=88782"},"modified":"2025-06-01T07:21:07","modified_gmt":"2025-06-01T07:21:07","slug":"which-one-of-the-following-pairs-of-elements-is-liquid-at-room-tempera","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-pairs-of-elements-is-liquid-at-room-tempera\/","title":{"rendered":"Which one of the following pairs of elements is liquid at room tempera"},"content":{"rendered":"

Which one of the following pairs of elements is liquid at room temperature and at normal pressure ?<\/p>\n

[amp_mcq option1=”Gallium and Bromine” option2=”Mercury and Bromine” option3=”Gallium and Mercury” option4=”Gallium and Caesium” correct=”option2″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC NDA-2 – 2021<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nAt standard room temperature (approximately 25\u00b0C) and normal pressure, only two elements are liquids: Mercury (Hg), a metal, and Bromine (Br\u2082), a non-metal.
\n<\/section>\n
\n– Mercury is the only metallic element that is liquid at room temperature.
\n– Bromine is the only non-metallic element that is liquid at room temperature.
\n– Gallium (melting point 29.8 \u00b0C) and Caesium (melting point 28.5 \u00b0C) melt just above typical room temperature but are usually considered solid at 25\u00b0C.
\n<\/section>\n
\nWhile Gallium and Caesium have very low melting points and can melt in slightly warmer conditions or even in the hand, Mercury and Bromine are consistently liquid under standard room temperature conditions.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following pairs of elements is liquid at room temperature and at normal pressure ? [amp_mcq option1=”Gallium and Bromine” option2=”Mercury and Bromine” option3=”Gallium and Mercury” option4=”Gallium and Caesium” correct=”option2″] This question was previously asked in UPSC NDA-2 – 2021 Download PDFAttempt Online At standard room temperature (approximately 25\u00b0C) and normal pressure, only … <\/p>\n

Detailed SolutionWhich one of the following pairs of elements is liquid at room tempera<\/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":[1094],"tags":[1110,1096,1239],"class_list":["post-88782","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-2","tag-1110","tag-chemistry","tag-inorganic-chemistry","no-featured-image-padding"],"yoast_head":"\nWhich one of the following pairs of elements is liquid at room tempera<\/title>\n<meta name=\"description\" content=\"At standard room temperature (approximately 25\u00b0C) and normal pressure, only two elements are liquids: Mercury (Hg), a metal, and Bromine (Br\u2082), a non-metal. - Mercury is the only metallic element that is liquid at room temperature. - Bromine is the only non-metallic element that is liquid at room temperature. - Gallium (melting point 29.8 \u00b0C) and Caesium (melting point 28.5 \u00b0C) melt just above typical room temperature but are usually considered solid at 25\u00b0C.\" \/>\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-of-the-following-pairs-of-elements-is-liquid-at-room-tempera\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which one of the following pairs of elements is liquid at room tempera\" \/>\n<meta property=\"og:description\" content=\"At standard room temperature (approximately 25\u00b0C) and normal pressure, only two elements are liquids: Mercury (Hg), a metal, and Bromine (Br\u2082), a non-metal. - Mercury is the only metallic element that is liquid at room temperature. - Bromine is the only non-metallic element that is liquid at room temperature. - Gallium (melting point 29.8 \u00b0C) and Caesium (melting point 28.5 \u00b0C) melt just above typical room temperature but are usually considered solid at 25\u00b0C.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-pairs-of-elements-is-liquid-at-room-tempera\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T07:21:07+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 of the following pairs of elements is liquid at room tempera","description":"At standard room temperature (approximately 25\u00b0C) and normal pressure, only two elements are liquids: Mercury (Hg), a metal, and Bromine (Br\u2082), a non-metal. - 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