Answer:
HNO3
Explanations:
What is an acid?
An acid is a substance that can accept an eelctron or donate a proton during a reaction.
In order to determine the acid,we need to determine the compound that can donate a proton from the options given
For HNO3, it has a hydrogen ion H+ that is capable of donating an electron pair from a compound donor. This makes the compound an acidic compound