{"id":90941,"date":"2025-06-01T10:41:38","date_gmt":"2025-06-01T10:41:38","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=90941"},"modified":"2025-06-01T10:41:38","modified_gmt":"2025-06-01T10:41:38","slug":"which-among-the-following-are-the-main-ingredients-for-manufacturing-o","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-among-the-following-are-the-main-ingredients-for-manufacturing-o\/","title":{"rendered":"Which among the following are the main ingredients for manufacturing o"},"content":{"rendered":"

Which among the following are the main ingredients for manufacturing of glass ?<\/p>\n

[amp_mcq option1=”Silica, sodium carbonate, borax, alumina and cullets” option2=”Iron oxide, lead, sodium bicarbonate, alumina and cullets” option3=”Magnesium carbonate, alumina, silica and cullets” option4=”Iron oxide, sodium, alumina, silica and cullets” correct=”option1″]<\/p>\n

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\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
\nThe correct option is A. The main ingredients for manufacturing common glass (soda-lime glass) are silica, sodium carbonate (soda ash), and calcium carbonate (limestone). Option A includes silica and sodium carbonate, along with other common additives and components used in glass manufacturing.
\n<\/section>\n
\n– Silica (sand) is the primary component, forming the glass structure.
\n– Sodium carbonate (soda ash) is added to lower the melting point of silica. It decomposes to sodium oxide (Na\u2082O) during heating.
\n– Calcium carbonate (limestone) is added to improve durability and prevent the glass from dissolving in water. It decomposes to calcium oxide (CaO) during heating.
\n– Alumina (aluminium oxide) is a common additive to increase strength, chemical resistance, and reduce devitrification.
\n– Borax (sodium borate) is used in the manufacture of borosilicate glass, which has high thermal resistance. Its presence in option A suggests a broader view of glass manufacturing ingredients beyond just standard soda-lime glass.
\n– Cullets are recycled glass added to the batch mixture. They act as a flux, reducing the melting temperature and saving energy.
\n<\/section>\n
\nWhile standard soda-lime glass primarily uses silica, sodium carbonate, and calcium carbonate, option A provides a list that includes key primary components and common additives like alumina and borax (for specific glass types), along with cullets which are universally used in modern glass production. Options B, C, and D contain inaccuracies like elemental sodium or less common primary components.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which among the following are the main ingredients for manufacturing of glass ? [amp_mcq option1=”Silica, sodium carbonate, borax, alumina and cullets” option2=”Iron oxide, lead, sodium bicarbonate, alumina and cullets” option3=”Magnesium carbonate, alumina, silica and cullets” option4=”Iron oxide, sodium, alumina, silica and cullets” correct=”option1″] This question was previously asked in UPSC CAPF – 2024 Download PDFAttempt … <\/p>\n

Detailed SolutionWhich among the following are the main ingredients for manufacturing o<\/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":[1103,1096,1239],"class_list":["post-90941","post","type-post","status-publish","format-standard","hentry","category-upsc-capf","tag-1103","tag-chemistry","tag-inorganic-chemistry","no-featured-image-padding"],"yoast_head":"\nWhich among the following are the main ingredients for manufacturing o<\/title>\n<meta name=\"description\" content=\"The correct option is A. The main ingredients for manufacturing common glass (soda-lime glass) are silica, sodium carbonate (soda ash), and calcium carbonate (limestone). Option A includes silica and sodium carbonate, along with other common additives and components used in glass manufacturing. - Silica (sand) is the primary component, forming the glass structure. - Sodium carbonate (soda ash) is added to lower the melting point of silica. It decomposes to sodium oxide (Na\u2082O) during heating. - Calcium carbonate (limestone) is added to improve durability and prevent the glass from dissolving in water. It decomposes to calcium oxide (CaO) during heating. - Alumina (aluminium oxide) is a common additive to increase strength, chemical resistance, and reduce devitrification. - Borax (sodium borate) is used in the manufacture of borosilicate glass, which has high thermal resistance. Its presence in option A suggests a broader view of glass manufacturing ingredients beyond just standard soda-lime glass. - Cullets are recycled glass added to the batch mixture. They act as a flux, reducing the melting temperature and saving energy.\" \/>\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\/which-among-the-following-are-the-main-ingredients-for-manufacturing-o\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which among the following are the main ingredients for manufacturing o\" \/>\n<meta property=\"og:description\" content=\"The correct option is A. The main ingredients for manufacturing common glass (soda-lime glass) are silica, sodium carbonate (soda ash), and calcium carbonate (limestone). Option A includes silica and sodium carbonate, along with other common additives and components used in glass manufacturing. - Silica (sand) is the primary component, forming the glass structure. - Sodium carbonate (soda ash) is added to lower the melting point of silica. It decomposes to sodium oxide (Na\u2082O) during heating. - Calcium carbonate (limestone) is added to improve durability and prevent the glass from dissolving in water. It decomposes to calcium oxide (CaO) during heating. - Alumina (aluminium oxide) is a common additive to increase strength, chemical resistance, and reduce devitrification. - Borax (sodium borate) is used in the manufacture of borosilicate glass, which has high thermal resistance. Its presence in option A suggests a broader view of glass manufacturing ingredients beyond just standard soda-lime glass. - Cullets are recycled glass added to the batch mixture. They act as a flux, reducing the melting temperature and saving energy.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-among-the-following-are-the-main-ingredients-for-manufacturing-o\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T10:41:38+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":"Which among the following are the main ingredients for manufacturing o","description":"The correct option is A. The main ingredients for manufacturing common glass (soda-lime glass) are silica, sodium carbonate (soda ash), and calcium carbonate (limestone). Option A includes silica and sodium carbonate, along with other common additives and components used in glass manufacturing. - Silica (sand) is the primary component, forming the glass structure. - Sodium carbonate (soda ash) is added to lower the melting point of silica. It decomposes to sodium oxide (Na\u2082O) during heating. - Calcium carbonate (limestone) is added to improve durability and prevent the glass from dissolving in water. It decomposes to calcium oxide (CaO) during heating. - Alumina (aluminium oxide) is a common additive to increase strength, chemical resistance, and reduce devitrification. - Borax (sodium borate) is used in the manufacture of borosilicate glass, which has high thermal resistance. Its presence in option A suggests a broader view of glass manufacturing ingredients beyond just standard soda-lime glass. - Cullets are recycled glass added to the batch mixture. They act as a flux, reducing the melting temperature and saving energy.","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\/which-among-the-following-are-the-main-ingredients-for-manufacturing-o\/","og_locale":"en_US","og_type":"article","og_title":"Which among the following are the main ingredients for manufacturing o","og_description":"The correct option is A. The main ingredients for manufacturing common glass (soda-lime glass) are silica, sodium carbonate (soda ash), and calcium carbonate (limestone). Option A includes silica and sodium carbonate, along with other common additives and components used in glass manufacturing. - Silica (sand) is the primary component, forming the glass structure. - Sodium carbonate (soda ash) is added to lower the melting point of silica. It decomposes to sodium oxide (Na\u2082O) during heating. - Calcium carbonate (limestone) is added to improve durability and prevent the glass from dissolving in water. It decomposes to calcium oxide (CaO) during heating. - Alumina (aluminium oxide) is a common additive to increase strength, chemical resistance, and reduce devitrification. - Borax (sodium borate) is used in the manufacture of borosilicate glass, which has high thermal resistance. Its presence in option A suggests a broader view of glass manufacturing ingredients beyond just standard soda-lime glass. - Cullets are recycled glass added to the batch mixture. They act as a flux, reducing the melting temperature and saving energy.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-among-the-following-are-the-main-ingredients-for-manufacturing-o\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T10:41:38+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\/which-among-the-following-are-the-main-ingredients-for-manufacturing-o\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-among-the-following-are-the-main-ingredients-for-manufacturing-o\/","name":"Which among the following are the main ingredients for manufacturing o","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T10:41:38+00:00","dateModified":"2025-06-01T10:41:38+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The correct option is A. The main ingredients for manufacturing common glass (soda-lime glass) are silica, sodium carbonate (soda ash), and calcium carbonate (limestone). Option A includes silica and sodium carbonate, along with other common additives and components used in glass manufacturing. - Silica (sand) is the primary component, forming the glass structure. - Sodium carbonate (soda ash) is added to lower the melting point of silica. It decomposes to sodium oxide (Na\u2082O) during heating. - Calcium carbonate (limestone) is added to improve durability and prevent the glass from dissolving in water. It decomposes to calcium oxide (CaO) during heating. - Alumina (aluminium oxide) is a common additive to increase strength, chemical resistance, and reduce devitrification. - Borax (sodium borate) is used in the manufacture of borosilicate glass, which has high thermal resistance. 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