Acids and Bases Quiz

Why is a strong acid added slowly to water to dilute it? Why is water not added to a strong acid?

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How can China rose indicator be prepared in the laboratory?

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What is a neutralisation reaction? Give the chemical reaction to show the formation of common salt.

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Write a short note on salts.

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Give a use for each of the following substances. 1. tartaric acid 2. nitric acid 3. benzoic acid 4. potassium hydroxide 5. calamine solution (zinc oxide)

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______is an organic acid.

• a. tartaric acid

• b. nitric acid

• c. carbonic acid

• d. sulphuric acid

is used as an antacid (milk of magnesia) to neutralise stomach acidity.

• a. zinc oxide

• b. sodium hydroxide

• c. magnesium hydroxide

• d. calcium oxide

Acids react with carbonates to produce_______ gas.

• a. hydrogen

• b. carbon dioxide

• c. oxygen

• d. nitrogen

Usage of excess chemical fertilisers makes the soil acidic. The substance used to neutralise the acids in the soil is ______.

• a. calcium chloride

• b. calcium oxide

• c. calcium

• d. calcium sulphate

Soft drinks and soda water are tangy because they contain______ acid.

• a. lactic

• b. ascorbic

• c. acetic

• d. carbonic