Question

what r common in all acids

Answer 1

Any substance with a pH value between 0 up to 7 is considered acidic.Acids are ionic compounds that break apart in water to form a hydrogen ion (H+).Taste-Sour (vinegar),Smell-Frequently burns nose,Texture-Sticky,Reactivity-Frequently react with metals to form H2

Answer 2

all acids have H+(hydrogen) in active parts( they are sour in taste).
all bases have OH- in active parts( they are bitter).