{"id":22998,"date":"2024-04-15T06:27:50","date_gmt":"2024-04-15T06:27:50","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=22998"},"modified":"2024-04-15T06:27:50","modified_gmt":"2024-04-15T06:27:50","slug":"the-iron-ore-magnetite-consists-of-a-fe2o3-b-fe3oh4-c-feco3-d-3fe2o3-3h2o","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-iron-ore-magnetite-consists-of-a-fe2o3-b-fe3oh4-c-feco3-d-3fe2o3-3h2o\/","title":{"rendered":"The iron ore magnetite consists of A. Fe2O3 B. Fe3OH4 C. FeCO3 D. 3Fe2O3 .3H2O"},"content":{"rendered":"<p>[amp_mcq option1=&#8221;Fe2O3&#8243; option2=&#8221;Fe3OH4&#8243; option3=&#8221;FeCO3&#8243; option4=&#8221;3Fe2O3 .3H2O&#8221; correct=&#8221;option1&#8243;]<!--more--><\/p>\n<p>The correct answer is A. Fe2O3.<\/p>\n<p>Magnetite is an iron ore with the chemical formula Fe2O3. It is a black, opaque mineral that is found in igneous and metamorphic rocks. Magnetite is the most magnetic of all the iron ores and is used in the manufacture of magnets, steel, and other iron-based products.<\/p>\n<p>The other options are incorrect. B. Fe3OH4 is the chemical formula for lepidocrocite, a hydrated iron oxide. C. FeCO3 is the chemical formula for siderite, a carbonate mineral. D. 3Fe2O3 .3H2O is the chemical formula for goethite, an iron oxide hydroxide.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;Fe2O3&#8243; option2=&#8221;Fe3OH4&#8243; option3=&#8221;FeCO3&#8243; option4=&#8221;3Fe2O3 .3H2O&#8221; correct=&#8221;option1&#8243;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"class_list":["post-22998","post","type-post","status-publish","format-standard","hentry","category-chemistry","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>The iron ore magnetite consists of A. Fe2O3 B. Fe3OH4 C. 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