AIR AND COMBUSTION

What is the aim of the experiment?

• To test for Carbon (IV) oxide

• To show that Carbon (IV) oxide is present in air

• To remove Carbon (IV) oxide

• To remove dust

What is the expected observation in calcium hydroxide solution?

• It turns milky

• No colour change

• It increases in volume

• It forms a white precipitate

What does this set up demonstrate?

• Presence of Carbon (IV) oxide in air

• Presence of Water vapour in air

• Presence of Oxygen in air

• Presence of noble gases in air

Which of the following is not a deliquescent substance?

• Zinc chloride

• Iron (III) chloride

• Magnesium chloride

• Copper (II) sulphate

Identify the process illustrated below

• Rusting

• Oxidation

• Simple distillation of air

• Fractional distillation of air

Why is the air passed in filter chamber?

• To remove Carbon (IV) oxide

• To remove water vapour

• To remove dust

• To cool the air

Why is the air passed through sodium hydroxide solution?

• To remove Carbon (IV) oxide

• To remove water vapour

• To remove dust

• To cool the air

Name gas A

• Carbon (IV) oxide

• Oxygen

• Argon

• Nitrogen

Name gas B

• Carbon (IV) oxide

• Oxygen

• Argon

• Nitrogen

Name gas C

• Carbon (IV) oxide

• Oxygen

• Argon

• Nitrogen