Essential Chemistry for IGCSE - Structure And Bonding (Section 5 - No. 23)
Which of the following compounds is most likely to have high melting and boiling points?
Methane (CH₄)
Sodium chloride (NaCl)
Oxygen (O₂)
Water (H₂O)
Explanation
Sodium chloride is an ionic compound with a strong lattice, leading to high melting and boiling points.
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