Lemon juice and vinegar are both acids. How would you test to see which one is stronger?
to find out which is stronger u can use a indicator paper...when u touch the paper to the lemon juice the paper will turn red as its an acidic substance and the same will be in the case of vinegar...the object which will produce more dark colour to the paper will be more stronger.
hope it helps u : )
hope it helps u : )