MCQ
An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be:
  • Calcium.
  • B
    Carbon.
  • C
    Silicon.
  • D
    Iron.

Answer

Correct option: A.
Calcium.
Calcium reacts with oxygen to form calcium oxide with a high melting point. This compound is also soluble in water.

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