Question

Which one of the following is acidic ?

Answer 1

Explanation:

Test water solution of the substance with blue/red litmus paper the check whether its acidic or basic. An acidic solution will turn blue litmus paper into red, whereas a basic solution will turn a red litmus paper into blue.

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Answer 2

Lime juice is acidic in nature because it ontains cirtic . Human blood is slightly basic (i.e having pH 7.8) Lime water and antacid are basic in nature as they contain hydroxide (OH-) ion.