Acid and Base Litmus

Which of the following is NOT property of an acid?

• An acid Is corrosive.

• An acid turns red litmus paper blue

• An acid reacts with metals and carbonate.

• An acid tastes sour.

Which of the following best describes bases?

• They feel slippery and taste sour.

• They turn red litmus paper blue and react with metals.

• They taste bitter and react with carbonates.

• They turn red litmus paper blue and taste bitter.

Because it wears away certain materials, an acid is described as

• concentrated

• contaminated

• corrosive

• carbonated

Which of the following best describes acids?

• They taste sour and react with metals.

• They taste bitter aid react with carbonates.

• They feel slippery and turn blue litmus paper red.

• They react with metals but not with carbonates.

Which of the following substances is NOT an acid?

• HCl

• H₂SO₄

• NaOH

• HNO₃

The negative ion found in bases is the

• hydroxide ion

• hydrogen ion

• carbonate ion

• water ion

Which of the following substances is most likely to have a pH close to 7?

• lemon

• antacid

• baking soda

• vinegar

Which of the following statements is NOT true about neutralization?

• An acid and a base are the reactants.

• A salt and water are the products.

• There is no color change in litmus paper when the reaction is over.

• It produces an acid-base mixture that is more acidic than both the individual starting solutions.