Why does Cu dissolve in concentrated nitric acid but not in concentrated hydrochloric acid?
A)The chloride ion is a stronger oxidizing agent than the nitrate ion.
B)The hydrochloric acid is not as strong as nitric acid.
C)The hydrochloric acid produces insufficient hydronium ion to react with the copper.
D)The nitrate ion is a stronger oxidizing agent than the hydronium ion.

Question

Quizplus · Accepted Answer

The nitrate ion (NO3-) in nitric acid acts as a strong oxidizing agent, which is capable of oxidizing copper (Cu) to Cu2+, allowing it to dissolve. Hydrochloric acid lacks a strong oxidizing agent, which is why copper does not dissolve in it.

Why Does Cu Dissolve in Concentrated Nitric Acid but Not