{"id":87566,"date":"2025-06-01T06:47:50","date_gmt":"2025-06-01T06:47:50","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=87566"},"modified":"2025-06-01T06:47:50","modified_gmt":"2025-06-01T06:47:50","slug":"how-is-carbon-black-obtained","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/how-is-carbon-black-obtained\/","title":{"rendered":"How is carbon black obtained ?"},"content":{"rendered":"

How is carbon black obtained ?<\/p>\n

[amp_mcq option1=”By heating wood at high temperature in absence of air” option2=”By heating coal at high temperature in absence of air” option3=”By burning hydrocarbons in a limited supply of air” option4=”By heating coal at high temperature in presence of air” correct=”option3″]<\/p>\n

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\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
\nCarbon black is obtained by the incomplete combustion or thermal decomposition of hydrocarbons in a limited supply of air.
\n<\/section>\n
\nMethods like the furnace black process or channel black process involve burning hydrocarbon feedstock (like natural gas or oil) with insufficient oxygen, leading to the formation of fine carbon particles (soot), which is collected as carbon black.
\n<\/section>\n
\nHeating wood or coal at high temperatures in the absence of air are processes like pyrolysis or carbonization, which yield charcoal and coke, respectively. These are different forms of carbon and processes.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

How is carbon black obtained ? [amp_mcq option1=”By heating wood at high temperature in absence of air” option2=”By heating coal at high temperature in absence of air” option3=”By burning hydrocarbons in a limited supply of air” option4=”By heating coal at high temperature in presence of air” correct=”option3″] This question was previously asked in UPSC NDA-1 … <\/p>\n

Detailed SolutionHow is carbon black obtained ?<\/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":[1114,1368,1096],"class_list":["post-87566","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-1","tag-1114","tag-carbon-and-its-various-forms","tag-chemistry","no-featured-image-padding"],"yoast_head":"\nHow is carbon black obtained ?<\/title>\n<meta name=\"description\" content=\"Carbon black is obtained by the incomplete combustion or thermal decomposition of hydrocarbons in a limited supply of air. 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