Acids bases and salts

The acid which enters the body by the sting of bee is

• Acetic acid

• Methanoic acid

• Sulphuric acid

• Tartaric acid

Which is not required to find the pH of the solution ?

• Universal indicator

• pH paper

• Standard pH chart

• Litmus paper

A scale for measuring hydrogen ion concentration in a solution is called

• Universal indicator

• pH scale

• Natural indicator

• Olfactory Indicator

A solution turned pink when a drop of phenolphthalein is added to it. Then the probable pH of that solution is

• 5

• 6

• 7

• 10

Which of the following mild base is used on the sting area gives relief?

• Calcium hydroxide

• Baking soda

• Sodium hydroxide

• Washing soda

The reaction of an acid with a base to give a salt and water is known as

• Neutralization

• Reduction

• Oxidation

• Crystallization

Bases which are soluble in water are called

• Acidic

• Basic

• Alkali

• Neutral

Which of the following aqueous solution is called brine solution?

• Sodium chloride

• Pottasium chloride

• Copper chloride

• Calcium chloride

Litmus solution is a dye extracted from

• Chrysanthemum

• Rose

• Lichens

• None

The aqueous solution of_________conducts electricity