{"id":85577,"date":"2025-06-01T03:21:56","date_gmt":"2025-06-01T03:21:56","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=85577"},"modified":"2025-06-01T03:21:56","modified_gmt":"2025-06-01T03:21:56","slug":"which-one-of-the-following-is-not-an-allotrope-of-carbon","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-not-an-allotrope-of-carbon\/","title":{"rendered":"Which one of the following is not an allotrope of carbon?"},"content":{"rendered":"

Which one of the following is not an allotrope of carbon?<\/p>\n

[amp_mcq option1=”Coal” option2=”Diamond” option3=”Graphite” option4=”Graphene” correct=”option1″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC CDS-2 – 2016<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nAllotropes are different physical forms in which an element can exist in the same physical state. Diamond, Graphite, and Graphene are distinct structural forms of pure carbon.
\n<\/section>\n
\nDiamond, Graphite, and Graphene are well-known allotropes of carbon with different crystal structures and physical properties. For example, diamond is very hard with a tetrahedral structure, graphite is soft with a layered structure, and graphene is a single layer of carbon atoms in a hexagonal lattice.
\nCoal, however, is a naturally occurring fossil fuel composed primarily of carbon but also containing varying amounts of hydrogen, oxygen, nitrogen, sulfur, and other elements, as well as mineral matter. It is a complex mixture, not a pure element existing in a specific crystalline or amorphous form.
\n<\/section>\n
\nOther allotropes of carbon include fullerenes (like Buckyballs), carbon nanotubes, and amorphous carbon. Coal contains carbon but is chemically and structurally too complex to be considered an allotrope of carbon.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following is not an allotrope of carbon? [amp_mcq option1=”Coal” option2=”Diamond” option3=”Graphite” option4=”Graphene” correct=”option1″] This question was previously asked in UPSC CDS-2 – 2016 Download PDFAttempt Online Allotropes are different physical forms in which an element can exist in the same physical state. Diamond, Graphite, and Graphene are distinct structural forms of … <\/p>\n

Detailed SolutionWhich one of the following is not an allotrope of carbon?<\/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":[1088],"tags":[1098,1368,1096],"class_list":["post-85577","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-2","tag-1098","tag-carbon-and-its-various-forms","tag-chemistry","no-featured-image-padding"],"yoast_head":"\nWhich one of the following is not an allotrope of carbon?<\/title>\n<meta name=\"description\" content=\"Allotropes are different physical forms in which an element can exist in the same physical state. Diamond, Graphite, and Graphene are distinct structural forms of pure carbon. Diamond, Graphite, and Graphene are well-known allotropes of carbon with different crystal structures and physical properties. For example, diamond is very hard with a tetrahedral structure, graphite is soft with a layered structure, and graphene is a single layer of carbon atoms in a hexagonal lattice. Coal, however, is a naturally occurring fossil fuel composed primarily of carbon but also containing varying amounts of hydrogen, oxygen, nitrogen, sulfur, and other elements, as well as mineral matter. It is a complex mixture, not a pure element existing in a specific crystalline or amorphous form.\" \/>\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-is-not-an-allotrope-of-carbon\/\" \/>\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 is not an allotrope of carbon?\" \/>\n<meta property=\"og:description\" content=\"Allotropes are different physical forms in which an element can exist in the same physical state. Diamond, Graphite, and Graphene are distinct structural forms of pure carbon. Diamond, Graphite, and Graphene are well-known allotropes of carbon with different crystal structures and physical properties. For example, diamond is very hard with a tetrahedral structure, graphite is soft with a layered structure, and graphene is a single layer of carbon atoms in a hexagonal lattice. Coal, however, is a naturally occurring fossil fuel composed primarily of carbon but also containing varying amounts of hydrogen, oxygen, nitrogen, sulfur, and other elements, as well as mineral matter. It is a complex mixture, not a pure element existing in a specific crystalline or amorphous form.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-not-an-allotrope-of-carbon\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T03:21:56+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 is not an allotrope of carbon?","description":"Allotropes are different physical forms in which an element can exist in the same physical state. 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