Question

An element reacts with oxygen to give a compound. This compound is soluble in water. The element is likely to be (1m)
1 point
Iron
Copper
Zinc
Potassium
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Answer 1

Answer:

potassium

Explanation:

KOH.

potassium reacts with oxygen to form KOH.

Which is soluble in water.

Answer 2

Answer:

(d)potassium

Explanation:

potassium reacts with oxygen to form potassium oxide which when dissolved in water forms potassium hydroxide