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What is the molecular formula for Nitric acid ________ ?

Correct answer: B. HNO3

  • A. HNO2
  • B. HNO3
  • C. HN2O2
  • D. H2NO4

Explanation

Nitric acid contains one hydrogen, one nitrogen and three oxygen atoms, giving the formula HNO3. HNO2 is nitrous acid, a different nitrogen oxyacid.

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Chemical principles appear in acids, bases, salts, solutions, oxidation, combustion, corrosion and neutralisation, along with the composition and uses of common substances. Coverage includes soaps and detergents, fertilizers, medicines, food preservatives, polymers, fuels and water treatment, while distinguishing physical changes from chemical reactions.

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