B.P.S.C. TRE-3 July, 2024
Which of the following is a characteristic property of an acid?
aTurn blue litmus paper red✓ Correct
bHave a pH greater than 7
cTurn red litmus paper blue
dMore than one of the above
eNone of the above
Explanation
The pH value of an acid is less than 7, and it turns blue litmus red, whereas the pH value of a base is greater than 7, and it turns red litmus blue.
general-science