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Per NCERT §9.6, which TYPE of compound generally has HIGH MELTING POINTS — because of the strong electrostatic forces in their crystal lattice?
ABoth have similar melting points
BNeither — they don't melt
CCovalent compounds (mostly low MP)
DIonic compounds (e.g. NaCl melts at ~801°C — high)
Answer & Solution
Correct answer: D. Ionic compounds (e.g. NaCl melts at ~801°C — high)
Per NCERT §9.6, ionic compounds have strong electrostatic forces in lattice → high MP. Covalent compounds typically have weaker intermolecular forces → lower MP.
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