Acid, Bases & Salt

The taste of acid is?

• Bitter

• Pungent

• Sour

• Salty

Answer explanation

The word acid comes from the Latin word acere which means sour.

Turmeric, litmus and China rose petals are examples of

• Acids

• Naturally occuring indicators

• Testers

• Simulators

Substances which are neither acidic nor basic are called

Answer explanation

Water is a neutral substance and so it turns the universal indicator solution green!!

The reaction between and acid and a base is known as

In neutralisation reaction a new substance is formed, which is?

• mineral

• carbon dioxide

• hydroxide

• salt

Answer explanation

Neutralisation method is used in wastewater treatment in order to reduce the damage created by the effluents. Neutralisation is used in the manufacturing of antacid tablets. The neutralisation reaction is used to control the pH of the soil.

Three liquids are given. One is hydrochloric acid, another is sodium hydroxide and third is a sugar solution.How will you identify them? You have only turmeric indicator.

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Nitric acid turns blue litmus

Ant bite contain what acid?

• hydrochloric acid

• formic acid

• nitric acid

• acetic acid

Answer explanation

when an ant bites, it injects the acidic liquid formic acid into the skin. The effect of acid can be neutralised by rubbing moist baking soda or calamine solution, which contains zinc carbonate.

Name the source from which litmus solution is obtained. What is the use of this solution.

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Damage to historical monuments is caused by