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Element X has a total of 19 electrons and can react with oxygen to form an oxide. Which ...

Element X has a total of 19 electrons and can react with oxygen to form an oxide. Which of the following statements is NOT true of the oxide of the element?
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  • A When exposed to air, it slowy changes to liquid
  • B Its solution in water conducts electricity
  • C Its solution in water, on evaporationm gives a white solid
  • D Its solution in water liberates hydroge when in contact with aluminium metal
  • E Its oxide, when stronlgy heated, regenerates the elements X
Correct Answer: Option A
Explanation:

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