Q

Which of the following is NOT a property of bases?

ALP CBT-1, 21-Aug-18 S-3 2018
✓ Answer: B They turn blue litmus red
Bases do not turn blue litmus to red, unlike acids which can. Acids turn blue litmus to red, while bases turn red litmus to blue. Bases react with acids to form salts, essentially neutralizing them. Bases have a bitter taste, whereas acids have a sour taste. On the pH scale from 0 to 14, pH less than 7 indicates an acid, above 7 indicates a base, and pH 7 is neutral.