Question

4. Which of the following is the correct order of decreasing reactivity?
A. Iron, potassium, magnesium, gold, copper
B. Magnesium, copper, iron, gold, potassium
C. Gold, potassium, iron, copper, magnesium
D. Potassium, magnesium, iron, copper, gold
5. Metals can be placed in order of reactivity. What is this order called?
A. The periodic table
B. The reactivity table
C. The displacement series
D. The reactivity series​

Answer 1

Answer:

4. = option D

5 . = option D

Answer 2

Answer:

Explanation:

4 => D. Potassium, magnesium, iron, copper, gold

5=>D. The reactivity series​