Question 1
Which of the following is a general property of an acid?
◦ Acids are not able to dissolve metals.
◦ All acids are dense liquids.
◦ Acids have sour taste.
◦ Acids turn red litmus paper blue.
◦ Acids leave blue litmus paper unchanged.
Question 2
Which of the following is a general property of a base?
◦ Bases leave red litmus paper unchanged.
◦ Bases turn red litmus paper blue.
◦ Bases easily dissolve many metallic elements.
◦ Bases have sour taste.
◦ Bases turn blue litmus paper red.