Which formula represents nitric acid?

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Multiple Choice

Which formula represents nitric acid?

Explanation:
Nitric acid is an oxoacid containing hydrogen, nitrogen, and oxygen in a 1:1:3 ratio, giving the formula HNO3. It’s the nitrogen analogue of other common oxyacids, with the nitrate ion NO3− as its conjugate base. Among the listed formulas, HNO3 is nitric acid; CH3COOH is acetic acid, HCl is hydrogen chloride, and H2SO4 is sulfuric acid. The presence of nitrogen and three oxygens points to nitric acid.

Nitric acid is an oxoacid containing hydrogen, nitrogen, and oxygen in a 1:1:3 ratio, giving the formula HNO3. It’s the nitrogen analogue of other common oxyacids, with the nitrate ion NO3− as its conjugate base. Among the listed formulas, HNO3 is nitric acid; CH3COOH is acetic acid, HCl is hydrogen chloride, and H2SO4 is sulfuric acid. The presence of nitrogen and three oxygens points to nitric acid.

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