metals & nonmetals

How can you test to show that when a metal reacts with water, hydrogen gas is produced?

• Relights a glowing splint
• A lit splint produces a squeaky pop
• Puts out a burning splint
• Is cold to the touch

What metal hydroxide is produced when magnesium reacts with water?

• Copper hydroxide
• Magnesium oxide
• Magnesium
• Magnesium hydroxide

What gas is produced when sodium reacts with water?

• Hydrogen
• Carbon dioxide
• Carbon monoxide
• Water vapour

Which metal is most likely to react with water or acid?

• Copper
• Potassium
• Magnesium
• Iron

Which salt will be produced if magnesium react with hydrochloric acid?

• Magnesium oxide
• Magnesium sulfate
• Magnesium sulfide
• Magnesium chloride

Phosphorus is very reactive

• Metal

• Non metal

• Metalloid

• None of the above

Metal oxides are

• Basic

• Acidic

• Neutral

• None of the above

More reactive metal displaces less reactive metal from its salt solution is known as

• Combination reaction

• Displacement reaction

• Neutral reaction

• None of the above

Zinc is more reactive than

• Copper

• Iron

• Copper and Iron both

• Only iron

Sodium is very reactive metal because it reacts vigorously with oxygen and water and

• Generate heat

• Catches fire

• Stored in kerosene

• All of the above