{"id":87548,"date":"2025-06-01T06:47:24","date_gmt":"2025-06-01T06:47:24","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=87548"},"modified":"2025-06-01T06:47:24","modified_gmt":"2025-06-01T06:47:24","slug":"which-one-of-the-following-is-the-chemical-formula-of-washing-soda","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-chemical-formula-of-washing-soda\/","title":{"rendered":"Which one of the following is the chemical formula of Washing Soda ?"},"content":{"rendered":"

Which one of the following is the chemical formula of Washing Soda ?<\/p>\n

[amp_mcq option1=”NaHCO\u2083” option2=”Na\u2082CO\u2083\u00b710H\u2082O” option3=”Na\u2082CO\u2083\u00b75H\u2082O” option4=”NaOH” correct=”option2″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC NDA-1 – 2018<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe correct answer is B) Na\u2082CO\u2083\u00b710H\u2082O.
\n<\/section>\n
\nWashing soda is the common name for hydrated sodium carbonate. While anhydrous sodium carbonate is Na\u2082CO\u2083 (soda ash), the most common hydrated form used as washing soda is sodium carbonate decahydrate, with the chemical formula Na\u2082CO\u2083\u00b710H\u2082O. This compound contains ten molecules of water of crystallization per molecule of sodium carbonate.
\n<\/section>\n
\nSodium carbonate is used in various applications, including as a water softener (hence “washing soda”), in glass manufacturing, in the production of detergents and other chemicals. Sodium bicarbonate (NaHCO\u2083) is baking soda, which is different and used as a leavening agent and antacid. Sodium hydroxide (NaOH) is caustic soda, a strong base used in soap making and other industrial processes.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following is the chemical formula of Washing Soda ? [amp_mcq option1=”NaHCO\u2083” option2=”Na\u2082CO\u2083\u00b710H\u2082O” option3=”Na\u2082CO\u2083\u00b75H\u2082O” option4=”NaOH” correct=”option2″] This question was previously asked in UPSC NDA-1 – 2018 Download PDFAttempt Online The correct answer is B) Na\u2082CO\u2083\u00b710H\u2082O. Washing soda is the common name for hydrated sodium carbonate. While anhydrous sodium carbonate is Na\u2082CO\u2083 (soda … <\/p>\n

Detailed SolutionWhich one of the following is the chemical formula of Washing Soda ?<\/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":[1093],"tags":[1114,1202,1096],"class_list":["post-87548","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-1","tag-1114","tag-acid-base-and-salt","tag-chemistry","no-featured-image-padding"],"yoast_head":"\nWhich one of the following is the chemical formula of Washing Soda ?<\/title>\n<meta name=\"description\" content=\"The correct answer is B) Na\u2082CO\u2083\u00b710H\u2082O. Washing soda is the common name for hydrated sodium carbonate. While anhydrous sodium carbonate is Na\u2082CO\u2083 (soda ash), the most common hydrated form used as washing soda is sodium carbonate decahydrate, with the chemical formula Na\u2082CO\u2083\u00b710H\u2082O. This compound contains ten molecules of water of crystallization per molecule of sodium carbonate.\" \/>\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-one-of-the-following-is-the-chemical-formula-of-washing-soda\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which one of the following is the chemical formula of Washing Soda ?\" \/>\n<meta property=\"og:description\" content=\"The correct answer is B) Na\u2082CO\u2083\u00b710H\u2082O. Washing soda is the common name for hydrated sodium carbonate. While anhydrous sodium carbonate is Na\u2082CO\u2083 (soda ash), the most common hydrated form used as washing soda is sodium carbonate decahydrate, with the chemical formula Na\u2082CO\u2083\u00b710H\u2082O. This compound contains ten molecules of water of crystallization per molecule of sodium carbonate.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-chemical-formula-of-washing-soda\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T06:47:24+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 one of the following is the chemical formula of Washing Soda ?","description":"The correct answer is B) Na\u2082CO\u2083\u00b710H\u2082O. Washing soda is the common name for hydrated sodium carbonate. While anhydrous sodium carbonate is Na\u2082CO\u2083 (soda ash), the most common hydrated form used as washing soda is sodium carbonate decahydrate, with the chemical formula Na\u2082CO\u2083\u00b710H\u2082O. This compound contains ten molecules of water of crystallization per molecule of sodium carbonate.","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-one-of-the-following-is-the-chemical-formula-of-washing-soda\/","og_locale":"en_US","og_type":"article","og_title":"Which one of the following is the chemical formula of Washing Soda ?","og_description":"The correct answer is B) Na\u2082CO\u2083\u00b710H\u2082O. Washing soda is the common name for hydrated sodium carbonate. While anhydrous sodium carbonate is Na\u2082CO\u2083 (soda ash), the most common hydrated form used as washing soda is sodium carbonate decahydrate, with the chemical formula Na\u2082CO\u2083\u00b710H\u2082O. This compound contains ten molecules of water of crystallization per molecule of sodium carbonate.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-chemical-formula-of-washing-soda\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T06:47:24+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-one-of-the-following-is-the-chemical-formula-of-washing-soda\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-chemical-formula-of-washing-soda\/","name":"Which one of the following is the chemical formula of Washing Soda ?","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T06:47:24+00:00","dateModified":"2025-06-01T06:47:24+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The correct answer is B) Na\u2082CO\u2083\u00b710H\u2082O. Washing soda is the common name for hydrated sodium carbonate. While anhydrous sodium carbonate is Na\u2082CO\u2083 (soda ash), the most common hydrated form used as washing soda is sodium carbonate decahydrate, with the chemical formula Na\u2082CO\u2083\u00b710H\u2082O. 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