Which one of the following types of medicines is used for treating indigestion?
A group of students measured the pH of some substances they found in their homes. Their results are given in the following table:
|Lemon juice||2.5||Washing soda||11.5|
(a) What would the students have used to measure the pH?
(b) Which solution is the most acidic?
(c) Which solution is the most alkaline?
(d) Which solutions are neutral?
(e) Which solution can be used to treat wasp stings?
(f) Which solutions can be used to treat bee stings?
Solution A turns universal indicator blue to purple whereas solution B turns universal indicator orange to red.
What will be the action of solution A on litmus?