Arrhenius acid definition: hydrogen ions, pH, and ionic compounds

[alias_grace]

An Arrhenius acid
a) in an ionic compound that contains hydrogen atoms
b) produces an aqueous solution whose pH is greater than 7
c) releases hydrogen ions in aqueous solution
d) is always a neutral molecule


I know that c) is true and d) is false. However, I don't know if a) and b) are within the definition of Arrhenius acid. My guess is that only c) is true. Can anyone point me in the right direction?

 

[bluevires]

According to the Arrhenius definition, an acid is any substance, which when dissolved in water, tends to increase the amount of H+

so my guess would be that C is always true, the others aren't necessarily true.

 

[Cesium]

Yes, C is correct by definition.

a is false because there are some ionic compounds that contain hydrogen atoms and are not acids- ie. NH4NO3, NaHCO3

b is false because >7 pH is a base

d wouldn't be an acid or a base

 

[alias_grace]

Thank you. I was trying to think of things to disprove the other answers to validate my answer :)