{"id":90938,"date":"2025-06-01T10:41:35","date_gmt":"2025-06-01T10:41:35","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=90938"},"modified":"2025-06-01T10:41:35","modified_gmt":"2025-06-01T10:41:35","slug":"the-isotope-of-which-one-among-the-following-elements-is-used-in-the-t","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-isotope-of-which-one-among-the-following-elements-is-used-in-the-t\/","title":{"rendered":"The isotope of which one among the following elements is used in the t"},"content":{"rendered":"

The isotope of which one among the following elements is used in the treatment of cancer ?<\/p>\n

[amp_mcq option1=”Uranium” option2=”Cobalt” option3=”Iodine” option4=”Fluorine” correct=”option2″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC CAPF – 2024<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nSeveral radioactive isotopes are used in the treatment of cancer, primarily in radiotherapy. Cobalt-60 is a widely used radioisotope that emits gamma rays, which are used in external beam radiotherapy machines (sometimes called “cobalt therapy”). Iodine-131 is used for internal radiotherapy, specifically in the treatment of thyroid cancer because the thyroid gland preferentially absorbs iodine. Uranium is used in nuclear power and weapons, not typically for direct cancer treatment. Fluorine-18 is a positron-emitting isotope used as a tracer in PET scans (Positron Emission Tomography), which is a diagnostic imaging technique, not a treatment. While Iodine-131 is used, Cobalt-60 is perhaps the most general and well-known example of a radioisotope used in radiotherapy for a wide range of cancers. Therefore, Cobalt is a correct answer.
\n<\/section>\n
\nRadioisotopes of certain elements are used in cancer treatment, particularly radiotherapy, to target and destroy cancer cells using emitted radiation. Cobalt-60 is a common example for external radiotherapy.
\n<\/section>\n
\nOther isotopes used in cancer therapy include Iridium-192 and Cesium-137 (brachytherapy), Gold-198 (colloidal gold therapy), and Phosphorus-32 (for polycythemia vera and chronic myeloid leukemia). Targeted alpha therapy uses isotopes that emit alpha particles (e.g., Radium-223, Actinium-225) linked to targeting molecules.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

The isotope of which one among the following elements is used in the treatment of cancer ? [amp_mcq option1=”Uranium” option2=”Cobalt” option3=”Iodine” option4=”Fluorine” correct=”option2″] This question was previously asked in UPSC CAPF – 2024 Download PDFAttempt Online Several radioactive isotopes are used in the treatment of cancer, primarily in radiotherapy. Cobalt-60 is a widely used radioisotope … <\/p>\n

Detailed SolutionThe isotope of which one among the following elements is used in the t<\/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":[1103,1096,1148],"class_list":["post-90938","post","type-post","status-publish","format-standard","hentry","category-upsc-capf","tag-1103","tag-chemistry","tag-food-preservation-nutrition-medicine-etc","no-featured-image-padding"],"yoast_head":"\nThe isotope of which one among the following elements is used in the t<\/title>\n<meta name=\"description\" content=\"Several radioactive isotopes are used in the treatment of cancer, primarily in radiotherapy. Cobalt-60 is a widely used radioisotope that emits gamma rays, which are used in external beam radiotherapy machines (sometimes called "cobalt therapy"). Iodine-131 is used for internal radiotherapy, specifically in the treatment of thyroid cancer because the thyroid gland preferentially absorbs iodine. Uranium is used in nuclear power and weapons, not typically for direct cancer treatment. Fluorine-18 is a positron-emitting isotope used as a tracer in PET scans (Positron Emission Tomography), which is a diagnostic imaging technique, not a treatment. While Iodine-131 is used, Cobalt-60 is perhaps the most general and well-known example of a radioisotope used in radiotherapy for a wide range of cancers. Therefore, Cobalt is a correct answer. Radioisotopes of certain elements are used in cancer treatment, particularly radiotherapy, to target and destroy cancer cells using emitted radiation. Cobalt-60 is a common example for external radiotherapy.\" \/>\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\/the-isotope-of-which-one-among-the-following-elements-is-used-in-the-t\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The isotope of which one among the following elements is used in the t\" \/>\n<meta property=\"og:description\" content=\"Several radioactive isotopes are used in the treatment of cancer, primarily in radiotherapy. Cobalt-60 is a widely used radioisotope that emits gamma rays, which are used in external beam radiotherapy machines (sometimes called "cobalt therapy"). Iodine-131 is used for internal radiotherapy, specifically in the treatment of thyroid cancer because the thyroid gland preferentially absorbs iodine. Uranium is used in nuclear power and weapons, not typically for direct cancer treatment. Fluorine-18 is a positron-emitting isotope used as a tracer in PET scans (Positron Emission Tomography), which is a diagnostic imaging technique, not a treatment. While Iodine-131 is used, Cobalt-60 is perhaps the most general and well-known example of a radioisotope used in radiotherapy for a wide range of cancers. Therefore, Cobalt is a correct answer. Radioisotopes of certain elements are used in cancer treatment, particularly radiotherapy, to target and destroy cancer cells using emitted radiation. Cobalt-60 is a common example for external radiotherapy.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/the-isotope-of-which-one-among-the-following-elements-is-used-in-the-t\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T10:41:35+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":"The isotope of which one among the following elements is used in the t","description":"Several radioactive isotopes are used in the treatment of cancer, primarily in radiotherapy. Cobalt-60 is a widely used radioisotope that emits gamma rays, which are used in external beam radiotherapy machines (sometimes called \"cobalt therapy\"). Iodine-131 is used for internal radiotherapy, specifically in the treatment of thyroid cancer because the thyroid gland preferentially absorbs iodine. Uranium is used in nuclear power and weapons, not typically for direct cancer treatment. Fluorine-18 is a positron-emitting isotope used as a tracer in PET scans (Positron Emission Tomography), which is a diagnostic imaging technique, not a treatment. While Iodine-131 is used, Cobalt-60 is perhaps the most general and well-known example of a radioisotope used in radiotherapy for a wide range of cancers. Therefore, Cobalt is a correct answer. Radioisotopes of certain elements are used in cancer treatment, particularly radiotherapy, to target and destroy cancer cells using emitted radiation. Cobalt-60 is a common example for external radiotherapy.","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\/the-isotope-of-which-one-among-the-following-elements-is-used-in-the-t\/","og_locale":"en_US","og_type":"article","og_title":"The isotope of which one among the following elements is used in the t","og_description":"Several radioactive isotopes are used in the treatment of cancer, primarily in radiotherapy. Cobalt-60 is a widely used radioisotope that emits gamma rays, which are used in external beam radiotherapy machines (sometimes called \"cobalt therapy\"). Iodine-131 is used for internal radiotherapy, specifically in the treatment of thyroid cancer because the thyroid gland preferentially absorbs iodine. Uranium is used in nuclear power and weapons, not typically for direct cancer treatment. Fluorine-18 is a positron-emitting isotope used as a tracer in PET scans (Positron Emission Tomography), which is a diagnostic imaging technique, not a treatment. While Iodine-131 is used, Cobalt-60 is perhaps the most general and well-known example of a radioisotope used in radiotherapy for a wide range of cancers. Therefore, Cobalt is a correct answer. Radioisotopes of certain elements are used in cancer treatment, particularly radiotherapy, to target and destroy cancer cells using emitted radiation. Cobalt-60 is a common example for external radiotherapy.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/the-isotope-of-which-one-among-the-following-elements-is-used-in-the-t\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T10:41:35+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\/the-isotope-of-which-one-among-the-following-elements-is-used-in-the-t\/","url":"https:\/\/exam.pscnotes.com\/mcq\/the-isotope-of-which-one-among-the-following-elements-is-used-in-the-t\/","name":"The isotope of which one among the following elements is used in the t","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T10:41:35+00:00","dateModified":"2025-06-01T10:41:35+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Several radioactive isotopes are used in the treatment of cancer, primarily in radiotherapy. 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