Question 1

What is a displacement reaction?

Accepted Answer

when a more reactive metal displaces a less reactive metal in a compound

Answer

when a less reactive metal displaces a more reactive metal in a compound

Question 2

Which element below is the most reactive?

Accepted Answer

Potassium

Answer

Calcium

Answer

Copper

Answer

Aluminium

Question 3

Which element below is the least reactive?

Accepted Answer

Platinum

Answer

Copper

Answer

Iron

Answer

Silver

Question 4

What is the correct order of reactivity (from the most reactive to the least)?

Accepted Answer

Potassium, sodium, calcium, magnesium

Answer

calcium, potassium, sodium, magnesium

Answer

Sodium, potassium, calcium, magnesium

Answer

potassium, calcium, magnesium, sodium

Question 5

What metal would be useful as jewellery?

Accepted Answer

Gold

Answer

Calcium

Answer

Iron

Answer

Potassium

Question 6

Aluminium chloride + potassium ------>

Accepted Answer

potassium chloride + aluminium

Answer

aluminium chloride + potassium

Question 7

copper sulphate + magnesium ---->

Accepted Answer

magnesium sulphate + copper

Answer

copper sulphate + magnesium

Question 8

Which element is more reactive than magnesium?

Accepted Answer

Potassium

Answer

Zinc

Answer

Gold

Answer

Lead

Question 9

Which element is less reactive than lead?

Accepted Answer

copper

Answer

aluminium

Answer

magnesium

Answer

zinc

Question 10

Which of these elements would displace copper in copper chloride?

Accepted Answer

calcium

Answer

gold

Answer

platinum

Answer

silver

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