{"id":677205,"date":"2023-09-02T20:32:53","date_gmt":"2023-09-02T15:02:53","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/question\/which-of-the-following-kinds-of-compounds-is-rust\/"},"modified":"2025-06-19T20:33:54","modified_gmt":"2025-06-19T15:03:54","slug":"which-of-the-following-kinds-of-compounds-is-rust","status":"publish","type":"questions","link":"https:\/\/infinitylearn.com\/surge\/question\/chemistry\/which-of-the-following-kinds-of-compounds-is-rust\/","title":{"rendered":"Which of the following kinds of compounds is rust?"},"content":{"rendered":"","protected":false},"author":1,"template":"","meta":{"_yoast_wpseo_focuskw":"","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"Which of the following kinds of compounds is rust?","custom_permalink":"question\/chemistry\/which-of-the-following-kinds-of-compounds-is-rust\/"},"categories":[],"acf":{"question":"<p style=\"margin-top:0pt; margin-bottom:0pt; line-height:normal; font-size:12pt\"><span>Which of the following kinds of compounds is rust?<\/span><\/p><br><pstyle=\"margin-top:0pt;margin-bottom:0pt;line-height:normal;font-size:12pt\"><spanstyle=\"font-family:'timesnewroman';-aw-import:ignore\"><p><\/p><pstyle=\"margin-top:0pt;margin-bottom:0pt;line-height:normal;font-size:12pt\"><spanstyle=\"font-family:'timesnewroman';-aw-import:ignore\"><p><\/p><\/spanstyle=\"font-family:'timesnewroman';-aw-import:ignore\"><\/pstyle=\"margin-top:0pt;margin-bottom:0pt;line-height:normal;font-size:12pt\"><\/spanstyle=\"font-family:'timesnewroman';-aw-import:ignore\"><\/pstyle=\"margin-top:0pt;margin-bottom:0pt;line-height:normal;font-size:12pt\">","options":[{"option":"<span>Rust is an iron oxide<\/span>","correct":true},{"option":"<span>Rust is a copper oxide<\/span>","correct":false},{"option":"<span>Rust is an ore<\/span>","correct":false},{"option":"<span>None of the above<\/span><span>&nbsp;<\/span>","correct":false}],"solution":"<span>Rust is an oxide of iron. <\/span><br><span>When iron reacts with moisture, it forms oxides with the oxygen in the air. A flaky substance above iron is formed. Rusting is prevented if zinc is coated above it. Rust is formed on an iron surface when it is exposed to moisture present in air. It is a slow and time taking process. Iron reacts with oxygen and forms iron oxide. Coating zinc above the iron is known as galvanisation to prevent it from rusting. It is a process where it forms a barrier that prevents corrosive substances from reaching the steel or iron. <\/span><br><span>Reaction involved in rusting of iron: <\/span><math xmlns=\"http:\/\/www.w3.org\/1998\/Math\/MathML\"><mn>4<\/mn><mi mathvariant=\"italic\">Fe<\/mi><mo>+<\/mo><msub><mrow><mn>3<\/mn><mi>O<\/mi><\/mrow><mrow><mn>2<\/mn><\/mrow><\/msub><mo>+<\/mo><msub><mrow><mn>2<\/mn><mi>H<\/mi><\/mrow><mrow><mn>2<\/mn><\/mrow><\/msub><mi>O<\/mi><mo>\u2192<\/mo><mn>2<\/mn><mi>F<\/mi><msub><mrow><mi>e<\/mi><\/mrow><mrow><mn>2<\/mn><\/mrow><\/msub><msub><mrow><mi>O<\/mi><\/mrow><mrow><mn>3<\/mn><\/mrow><\/msub><mo>.<\/mo><msub><mrow><mi>H<\/mi><\/mrow><mrow><mn>2<\/mn><\/mrow><\/msub><mi>O<\/mi><\/math><br><span>&nbsp;<\/span>","subject":"Chemistry"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Which of the following kinds of compounds is rust? - Infinity Learn by Sri Chaitanya<\/title>\n<meta name=\"description\" content=\"Which of the following kinds of compounds is rust?\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/infinitylearn.com\/surge\/question\/chemistry\/which-of-the-following-kinds-of-compounds-is-rust\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which of the following kinds of compounds is rust? 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