acid base and salt

Which of the given is used as antacid ?

• Sodium chloride

• Sodium hydroxide

• Milk of Magenesia

• Potassium hydroxide

Which one of the given is the pH value of pure water ?

• 0

• 7

• 8

• 1

Which one of the given is the pH value of pure water ?

• 0

• 7

• 8

• 1

Which one of the given is true if a substance has a pH value of 4 ?

• the substance is an acid

• the substance is a base

• the substance is a neutral substance

• All of the above

You are given 3 unknown solutions with pH value as 6, 8 and 9.5 respectively. Which solution will contain maximum OH-ion ?

• Solution sample - 1

• Solution sample - 2

• Solution sample - 3

• Data are insufficient

Which one of the following salts does not con-tain water of crystallisation?

• Blue vitriol

• Baking soda

• Washing soda

• Gypsum

Which of the following acids is commonly found in vinegar?

• Sulfuric acid

• Citric acid

• Acetic acid

• Hydrochloric acid

What is the pH range of a strong acid?

• 0-3

• 10-14

• 4-6

• 7-9

Which of the following solutions is most likely to be a base?

• Solution with pH 10

• Solution with pH 7

• Solution with pH 5

• Solution with pH 3