Which of the following is alkaline?

a. colas
b. vinegar
c. detergents
d. lemon juice

I can't figure out whether it would be c., or d. Can you help me out? Thanks!

2 answers

Actually, I believe the answer would most likely be c. That seems to make the most sense to me.
yes. the rest are all acidic

a little googling will tell you which acids are involved