{"id":88360,"date":"2025-06-01T07:08:44","date_gmt":"2025-06-01T07:08:44","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=88360"},"modified":"2025-06-01T07:08:44","modified_gmt":"2025-06-01T07:08:44","slug":"the-principal-use-of-hydrofluoric-acid-is","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-principal-use-of-hydrofluoric-acid-is\/","title":{"rendered":"The principal use of hydrofluoric acid is"},"content":{"rendered":"

The principal use of hydrofluoric acid is<\/p>\n

[amp_mcq option1=”in etching glass” option2=”as a bleaching agent” option3=”as an extremely strong oxidizing agent” option4=”in the preparation of strong organic fluorine compounds” correct=”option1″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC NDA-2 – 2017<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe principal use of hydrofluoric acid is related to its unique property of reacting with silicon dioxide (silica).
\n<\/section>\n
\nHydrofluoric acid (HF) is highly corrosive and capable of dissolving many materials, particularly oxides and silicates. Its ability to react with SiO\u2082, the main component of glass, allows it to etch glass surfaces. This reaction is: SiO\u2082 + 4HF \u2192 SiF\u2084 + 2H\u2082O. This property is exploited extensively in industries for etching glass, cleaning silicon wafers in electronics, and polishing metals.
\n<\/section>\n
\nWhile HF is used in the production of organic fluorine compounds, as a catalyst, and in other chemical processes, etching glass and processing silicon are widely cited as principal or distinctive uses due to its unique reactivity with silicates. It is not primarily a bleaching agent or an extremely strong oxidizing agent.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

The principal use of hydrofluoric acid is [amp_mcq option1=”in etching glass” option2=”as a bleaching agent” option3=”as an extremely strong oxidizing agent” option4=”in the preparation of strong organic fluorine compounds” correct=”option1″] This question was previously asked in UPSC NDA-2 – 2017 Download PDFAttempt Online The principal use of hydrofluoric acid is related to its unique property … <\/p>\n

Detailed SolutionThe principal use of hydrofluoric acid is<\/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":[1094],"tags":[1101,1096,1245],"class_list":["post-88360","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-2","tag-1101","tag-chemistry","tag-sulphur-nitrogen-halogen-inert-gases","no-featured-image-padding"],"yoast_head":"\nThe principal use of hydrofluoric acid is<\/title>\n<meta name=\"description\" content=\"The principal use of hydrofluoric acid is related to its unique property of reacting with silicon dioxide (silica). Hydrofluoric acid (HF) is highly corrosive and capable of dissolving many materials, particularly oxides and silicates. Its ability to react with SiO\u2082, the main component of glass, allows it to etch glass surfaces. This reaction is: SiO\u2082 + 4HF \u2192 SiF\u2084 + 2H\u2082O. This property is exploited extensively in industries for etching glass, cleaning silicon wafers in electronics, and polishing metals.\" \/>\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-principal-use-of-hydrofluoric-acid-is\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The principal use of hydrofluoric acid is\" \/>\n<meta property=\"og:description\" content=\"The principal use of hydrofluoric acid is related to its unique property of reacting with silicon dioxide (silica). Hydrofluoric acid (HF) is highly corrosive and capable of dissolving many materials, particularly oxides and silicates. Its ability to react with SiO\u2082, the main component of glass, allows it to etch glass surfaces. This reaction is: SiO\u2082 + 4HF \u2192 SiF\u2084 + 2H\u2082O. 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