{"id":91845,"date":"2025-06-01T11:07:43","date_gmt":"2025-06-01T11:07:43","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=91845"},"modified":"2025-06-01T11:07:43","modified_gmt":"2025-06-01T11:07:43","slug":"why-is-there-a-concern-about-copper-smelting-plants-1-they-may-rel","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/why-is-there-a-concern-about-copper-smelting-plants-1-they-may-rel\/","title":{"rendered":"Why is there a concern about copper smelting plants?\n  1. They may rel"},"content":{"rendered":"<p>Why is there a concern about copper smelting plants?<\/p>\n<ul>\n<li>1. They may release lethal quantities of carbon monoxide into environment.<\/li>\n<li>2. The copper slag can cause the leaching of some heavy metals into environment.<\/li>\n<li>3. They may release sulphur dioxide as a pollutant.<\/li>\n<\/ul>\n<p>Select the correct answer using the code given below.<\/p>\n<p>[amp_mcq option1=&#8221;1 and 2 only&#8221; option2=&#8221;2 and 3 only&#8221; option3=&#8221;1 and 3 only&#8221; option4=&#8221;1, 2 and 3&#8243; correct=&#8221;option2&#8243;]<\/p>\n<div class=\"psc-box-pyq-exam-year-detail\">\n<div class=\"pyq-exam\">\n<div class=\"psc-heading\">This question was previously asked in<\/div>\n<div class=\"psc-title line-ellipsis\">UPSC IAS &#8211; 2021<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-ias-2021.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-ias-2021\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">\nThe correct option is B. Statements 2 and 3 are significant concerns associated with copper smelting plants, while statement 1 is less characteristic as a primary lethal pollution concern compared to sulphur dioxide emissions.<br \/>\n<\/section>\n<section id=\"pyq-key-points\">\n&#8211; Copper smelting often involves processing sulfide ores, leading to the release of large quantities of sulfur dioxide (SO2), a major air pollutant causing acid rain and respiratory issues. Statement 3 is correct.<br \/>\n&#8211; Copper slag, a waste byproduct of the smelting process, contains various heavy metals (including copper, lead, zinc, arsenic, etc.). There is a significant concern about the leaching of these heavy metals into the environment, contaminating soil and water. Statement 2 is correct.<br \/>\n&#8211; While carbon monoxide (CO) is a toxic gas produced from incomplete combustion processes which might occur in some parts of smelting, it is not typically highlighted as the primary or most widespread lethal air pollution concern from large-scale copper smelting operations compared to SO2. Statement 1 is less likely to be a major *defining* concern.<br \/>\n<\/section>\n<section id=\"pyq-additional-information\">\nOther environmental concerns related to copper smelting include particulate matter emissions, arsenic emissions (depending on ore composition), and solid waste disposal (slag). Modern smelting facilities employ technologies like sulfuric acid plants to capture SO2 and convert it into sulfuric acid, mitigating air pollution, but environmental risks remain, particularly from older plants and slag disposal.<br \/>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Why is there a concern about copper smelting plants? 1. They may release lethal quantities of carbon monoxide into environment. 2. The copper slag can cause the leaching of some heavy metals into environment. 3. They may release sulphur dioxide as a pollutant. Select the correct answer using the code given below. [amp_mcq option1=&#8221;1 and &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Why is there a concern about copper smelting plants?\n  1. They may rel\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/why-is-there-a-concern-about-copper-smelting-plants-1-they-may-rel\/#more-91845\">Detailed Solution<span class=\"screen-reader-text\">Why is there a concern about copper smelting plants?<br \/>\n  1. They may rel<\/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":[1092],"tags":[1110,1136,1137],"class_list":["post-91845","post","type-post","status-publish","format-standard","hentry","category-upsc-ias","tag-1110","tag-environment-and-ecology","tag-pollution","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Why is there a concern about copper smelting plants?  1. They may rel<\/title>\n<meta name=\"description\" content=\"The correct option is B. Statements 2 and 3 are significant concerns associated with copper smelting plants, while statement 1 is less characteristic as a primary lethal pollution concern compared to sulphur dioxide emissions. - Copper smelting often involves processing sulfide ores, leading to the release of large quantities of sulfur dioxide (SO2), a major air pollutant causing acid rain and respiratory issues. Statement 3 is correct. - Copper slag, a waste byproduct of the smelting process, contains various heavy metals (including copper, lead, zinc, arsenic, etc.). There is a significant concern about the leaching of these heavy metals into the environment, contaminating soil and water. Statement 2 is correct. - While carbon monoxide (CO) is a toxic gas produced from incomplete combustion processes which might occur in some parts of smelting, it is not typically highlighted as the primary or most widespread lethal air pollution concern from large-scale copper smelting operations compared to SO2. Statement 1 is less likely to be a major *defining* concern.\" \/>\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\/why-is-there-a-concern-about-copper-smelting-plants-1-they-may-rel\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why is there a concern about copper smelting plants?  1. They may rel\" \/>\n<meta property=\"og:description\" content=\"The correct option is B. Statements 2 and 3 are significant concerns associated with copper smelting plants, while statement 1 is less characteristic as a primary lethal pollution concern compared to sulphur dioxide emissions. - Copper smelting often involves processing sulfide ores, leading to the release of large quantities of sulfur dioxide (SO2), a major air pollutant causing acid rain and respiratory issues. Statement 3 is correct. - Copper slag, a waste byproduct of the smelting process, contains various heavy metals (including copper, lead, zinc, arsenic, etc.). There is a significant concern about the leaching of these heavy metals into the environment, contaminating soil and water. Statement 2 is correct. - While carbon monoxide (CO) is a toxic gas produced from incomplete combustion processes which might occur in some parts of smelting, it is not typically highlighted as the primary or most widespread lethal air pollution concern from large-scale copper smelting operations compared to SO2. Statement 1 is less likely to be a major *defining* concern.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/why-is-there-a-concern-about-copper-smelting-plants-1-they-may-rel\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T11:07:43+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":"Why is there a concern about copper smelting plants?  1. They may rel","description":"The correct option is B. Statements 2 and 3 are significant concerns associated with copper smelting plants, while statement 1 is less characteristic as a primary lethal pollution concern compared to sulphur dioxide emissions. - Copper smelting often involves processing sulfide ores, leading to the release of large quantities of sulfur dioxide (SO2), a major air pollutant causing acid rain and respiratory issues. Statement 3 is correct. - Copper slag, a waste byproduct of the smelting process, contains various heavy metals (including copper, lead, zinc, arsenic, etc.). There is a significant concern about the leaching of these heavy metals into the environment, contaminating soil and water. Statement 2 is correct. - While carbon monoxide (CO) is a toxic gas produced from incomplete combustion processes which might occur in some parts of smelting, it is not typically highlighted as the primary or most widespread lethal air pollution concern from large-scale copper smelting operations compared to SO2. Statement 1 is less likely to be a major *defining* concern.","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\/why-is-there-a-concern-about-copper-smelting-plants-1-they-may-rel\/","og_locale":"en_US","og_type":"article","og_title":"Why is there a concern about copper smelting plants?  1. They may rel","og_description":"The correct option is B. Statements 2 and 3 are significant concerns associated with copper smelting plants, while statement 1 is less characteristic as a primary lethal pollution concern compared to sulphur dioxide emissions. - Copper smelting often involves processing sulfide ores, leading to the release of large quantities of sulfur dioxide (SO2), a major air pollutant causing acid rain and respiratory issues. Statement 3 is correct. - Copper slag, a waste byproduct of the smelting process, contains various heavy metals (including copper, lead, zinc, arsenic, etc.). There is a significant concern about the leaching of these heavy metals into the environment, contaminating soil and water. Statement 2 is correct. - While carbon monoxide (CO) is a toxic gas produced from incomplete combustion processes which might occur in some parts of smelting, it is not typically highlighted as the primary or most widespread lethal air pollution concern from large-scale copper smelting operations compared to SO2. Statement 1 is less likely to be a major *defining* concern.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/why-is-there-a-concern-about-copper-smelting-plants-1-they-may-rel\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T11:07:43+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\/why-is-there-a-concern-about-copper-smelting-plants-1-they-may-rel\/","url":"https:\/\/exam.pscnotes.com\/mcq\/why-is-there-a-concern-about-copper-smelting-plants-1-they-may-rel\/","name":"Why is there a concern about copper smelting plants? 1. They may rel","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T11:07:43+00:00","dateModified":"2025-06-01T11:07:43+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The correct option is B. Statements 2 and 3 are significant concerns associated with copper smelting plants, while statement 1 is less characteristic as a primary lethal pollution concern compared to sulphur dioxide emissions. - Copper smelting often involves processing sulfide ores, leading to the release of large quantities of sulfur dioxide (SO2), a major air pollutant causing acid rain and respiratory issues. Statement 3 is correct. - Copper slag, a waste byproduct of the smelting process, contains various heavy metals (including copper, lead, zinc, arsenic, etc.). There is a significant concern about the leaching of these heavy metals into the environment, contaminating soil and water. Statement 2 is correct. - While carbon monoxide (CO) is a toxic gas produced from incomplete combustion processes which might occur in some parts of smelting, it is not typically highlighted as the primary or most widespread lethal air pollution concern from large-scale copper smelting operations compared to SO2. Statement 1 is less likely to be a major *defining* concern.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/why-is-there-a-concern-about-copper-smelting-plants-1-they-may-rel\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/why-is-there-a-concern-about-copper-smelting-plants-1-they-may-rel\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/why-is-there-a-concern-about-copper-smelting-plants-1-they-may-rel\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC IAS","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-ias\/"},{"@type":"ListItem","position":3,"name":"Why is there a concern about copper smelting plants? 1. They may rel"}]},{"@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\/91845","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=91845"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/91845\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=91845"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=91845"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=91845"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}