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Chemistry · May / June 2022 · Paper 11 · Question 8

5070Ion and ionic bondsSimple molecules and covalent bondsGiant covalent structures

Which statement about the substances, at room temperature and pressure, is correct?

  1. AW and X conduct electricity.
  2. BW and Y are elements.
  3. CX and Z dissolve in water.
  4. DY and Z have low melting points.

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Correct answer: C. X and Z dissolve in water.

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