Which acid has the formula hno2? hydronitric acid hydronitrous acid nitric acid nitrous acid hydornitridic acid

The correct answer is option D, Nitrous Acid

Explanation:

The chemical formula of nitrous acid is HNO2. The molecular configuration consists of biding of one nitrogen atom with two oxygen atom (with single and double bond). Also one of the oxygen atom bonded to nitrogen  with single bond is also bonded to hydrogen. Due to this structure, HNO2 is a weak acid and it only exists in the nitrate salt only

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