Acids

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Question 1

• Which one of the following acids is found in the stomach to aid digestion?

Ethanoic acid Sulfuric acid

Nitric acidHydrochloric acid

Wrong Answer!Explanation or correct answer here

Water

Question 2

• Which one of the following products is produced when calcium reacts with hydrochloric acid?

Calcium Nitrate Calcium Chloride

Calcium Chlorate

Wrong Answer!Explanation or correct answer here

Question 3

• What is the name of the reaction that occurs when an indigestion tablet reacts with excess stomach acid?

Combustion Precipitation

Neutralisation Nitration

Wrong Answer!Explanation or correct answer here

Question 4

• The chemical test for hydrogen gas is…

It makes a squeaky pop with a lit splint

It relights a glowing splint

It turns red litmus paper blue

It turns limewater cloudy

Wrong Answer!Explanation or correct answer here

Question 5

Which one of the following statements about chlorine gas is untrue?

It is toxic It is used in the manufacture of bleach

It is a green liquid at room temperature

It can be obtained from seawater by electrolysis

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Question 6

The chemical test for oxygen gas is..

It turns limewater cloudy

It makes a squeaky pop with a lit splint

It relights a glowing splint

It turns red litmus paper blue

Wrong Answer!Explanation or correct answer here

Question 7

• Water can be decomposed to form hydrogen and oxygen using a process called…

Filtration Electrolysis

Thermal decomposition

Polymerisation

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Question 8

• The correct chemical formula used to represent hydrogen gas is…

H2H

HIHi2

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Question 9

The chemical test for chlorine gas is

It relights a glowing splint

It makes a squeaky pop

It bleaches damp litmus paper

It stains litmus paper green

Wrong Answer!Explanation or correct answer here

Question 10

• If electricity were passed through a solution of hydrochloric acid, what would be the products?

Hydrogen gas only

Hydrogen and chlorine gas

No productsChlorine gas only

Wrong Answer!Explanation or correct answer here

Congratulations!