Q. 61 A4.3( 7 Votes )
Explain why the pH in a person's mouth becomes lower after each meal.
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(a) What will be the action of solution A on litmus?
(b) What will be action of solution B on litmus?
(c) Name any two substances which can give solutions like A.
(d) Name any two substances which can give solutions like B.
(e) What sort of reaction takes place when solution A reacts with solution B?Lakhmir Singh & Manjit Kaur - Chemistry
Metal polish : Dark blue
Washing-up liquid : Yellow
Milk of magnesia : Light blue
Oven cleaner : Purple
Car battery acid : Pink
Arrange the solutions in order of their increasing pH values (starting with the one with the lowest pH).Lakhmir Singh & Manjit Kaur - Chemistry