nitrous acid

noun Chemistry.

1. an acid, HNO2, known only in solution.

noun

1. a weak monobasic acid known only in solution and in the form of nitrite salts. Formula: HNO 2Systematic name: dioxonitric(III) acid

n.

1. A weak inorganic acid existing only in solution or in the form of its salts.

1. A weak inorganic acid existing only in solution or in the form of its salts. It can act either as an oxidizing agent or as a reducing agent. Chemical formula: HNO2.