Multiple choice

Which of the following statements regarding nitric acid are TRUE? P. Nitric acid is a colorless and odorless fuming liquid. Q. Nitric acid is produced commercially by Ostwald process. R. Nitric acid decomposes in sunlight to form nitrogen monoxide, water and oxygen. S. The common laboratory reagent known as concentrated nitric acid contains 70.4% HNO3 by mass.

  1. P and Q

  2. P and R

  3. Q and R

  4. Q and S

  5. R and S
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Nitric acid is produced commercially by the oxidation of ammonia in the Ostwald process. The common laboratory reagent known as concentrated nitric acid is 15.9 M HNO3 (70.4% HNO3 by mass).

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