Question

$HN{O}_2$ (Nitrous acid) is a monobasic acid. – True or False?

• A. True
• B. False

Answer 1

The correct option is A True

$HN{O}_2$ (Nitrous acid) is monobasic acid because it can donate only a single proton.
Basicity is the number of protons that an acid can give. From the structure,

We can see that there is only one H atom and so only one proton can be abstracted from a $HN{O}_2$ molecule. What can you say about the basicity of nitric acid?