{"id":87779,"date":"2025-06-01T06:54:01","date_gmt":"2025-06-01T06:54:01","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=87779"},"modified":"2025-06-01T06:54:01","modified_gmt":"2025-06-01T06:54:01","slug":"common-salt-nacl-is-not-used-as-a-raw-material-for-preparation-of","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/common-salt-nacl-is-not-used-as-a-raw-material-for-preparation-of\/","title":{"rendered":"Common salt (NaCl) is not used as a raw material for preparation of"},"content":{"rendered":"

Common salt (NaCl) is not<\/b> used as a raw material for preparation of which one of the following compounds?<\/p>\n

[amp_mcq option1=”Bleaching powder” option2=”Baking soda” option3=”Plaster of Paris” option4=”Washing soda” correct=”option3″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC NDA-1 – 2021<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe correct answer is (C) Plaster of Paris.
\n<\/section>\n
\nPlaster of Paris (Calcium sulfate hemihydrate, CaSO4\u00b7\u00bdH2O) is produced by heating gypsum (Calcium sulfate dihydrate, CaSO4\u00b72H2O) to about 150\u00b0C. The main raw material for Plaster of Paris is gypsum.
\n<\/section>\n
\nCommon salt (NaCl) is a key raw material for the production of:
\n– Bleaching powder: Chlorine gas, used to make bleaching powder, is typically produced by electrolysis of brine (aqueous NaCl).
\n– Baking soda (NaHCO3) and Washing soda (Na2CO3): Both are primarily manufactured using the Solvay process, which utilizes brine (NaCl solution), ammonia, and carbon dioxide.
\nThus, NaCl is a raw material (directly or indirectly) for bleaching powder, baking soda, and washing soda, but not for Plaster of Paris.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Common salt (NaCl) is not used as a raw material for preparation of which one of the following compounds? [amp_mcq option1=”Bleaching powder” option2=”Baking soda” option3=”Plaster of Paris” option4=”Washing soda” correct=”option3″] This question was previously asked in UPSC NDA-1 – 2021 Download PDFAttempt Online The correct answer is (C) Plaster of Paris. Plaster of Paris (Calcium … <\/p>\n

Detailed SolutionCommon salt (NaCl) is not used as a raw material for preparation of<\/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":[1110,1202,1096],"class_list":["post-87779","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-1","tag-1110","tag-acid-base-and-salt","tag-chemistry","no-featured-image-padding"],"yoast_head":"\nCommon salt (NaCl) is not used as a raw material for preparation of<\/title>\n<meta name=\"description\" content=\"The correct answer is (C) Plaster of Paris. Plaster of Paris (Calcium sulfate hemihydrate, CaSO4\u00b7\u00bdH2O) is produced by heating gypsum (Calcium sulfate dihydrate, CaSO4\u00b72H2O) to about 150\u00b0C. The main raw material for Plaster of Paris is gypsum.\" \/>\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\/common-salt-nacl-is-not-used-as-a-raw-material-for-preparation-of\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Common salt (NaCl) is not used as a raw material for preparation of\" \/>\n<meta property=\"og:description\" content=\"The correct answer is (C) Plaster of Paris. Plaster of Paris (Calcium sulfate hemihydrate, CaSO4\u00b7\u00bdH2O) is produced by heating gypsum (Calcium sulfate dihydrate, CaSO4\u00b72H2O) to about 150\u00b0C. 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Plaster of Paris (Calcium sulfate hemihydrate, CaSO4\u00b7\u00bdH2O) is produced by heating gypsum (Calcium sulfate dihydrate, CaSO4\u00b72H2O) to about 150\u00b0C. 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