Reactivity Series of Metals

What is the gas released when potassium manganate is heated?

• Hydrogen

• Oxygen

• Carbon dioxide

• Carbon monoxide

If the metal filling is zinc, what is the end product of reaction

• zinc metal

• zinc oxide

• zinc carbonate

• zinc manganate

Answer explanation

heating up potassium manganate will produce oxygen. That oxygen will react with metal and combine together to be zinc oxide.

Which of the following will react faster when heated

• Aluminium

• Ferum

• Zinc

• Lead

Answer explanation

you will need to memorise the reactivity series of metal. the higher the metal in the series, the more reactive the metal

Complete the word equation below.

Zinc + Oxygen --> ?

Complete the word equation below.

Aluminium oxide + Carbon -->

• Aluminium

• Aluminium carbon

• Carbon monoxide

• Carbon dioxide

Answer explanation

carbon will combine with oxide to be carbon dioxide and left aluminium metal

Potassium, sodium and calcium is very reactive with oxygen.

Where we should keep those metal

• In an air tight container

• In a vacuum chamber

• In paraffin oil

• In dilute sulphuric acid

Complete the word equation below.

Aluminium oxide + hydrogen -->

• Aluminium

• Aluminium hydroxide

• Water

• Hydrogen peroxide

Answer explanation

the reaction will produce hydrogen dioxide (water) and aluminium metal

Which of the following is more reactive towards oxygen

• Copper

• Silver

• Lead

• Gold

What is the metal located in between of carbon and hydrogen in the reactivity series of metals

What are the two non-lethal elements that are included in the reactivity series of metals

• Carbon

• Hydrogen

• Silver

• Gold