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Answer» What is Nitrous Acid mean? Nitrous acid (molecular formula HNO 2) is a weak and monoprotic acid known only in solution, in the gas phase and in the form of nitrite (NO− 2) salts. Nitrous acid is used to make diazonium salts from amines. The resulting diazonium salts are reagents in azo coupling reactions to give azo dyes. reference | Full Form | Category | | Nitrous Acid | Chemistry | | Nitrous Oxide | Chemistry | | Hole Outdoor National Outdoors | General | | Honolulu, Hawaii | Regional |
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