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Which compound would exhibit the highest melting point?
a) MgO b) KF c) NaCl d) KBr e) Glucose
Answer:
A is correct.
The highest melting point compound is the one with the greatest lattice energy. Small ions with large charges create the strongest attractions — and charge usually dominates size.
Here, Mg²⁺ and O²⁻ form an ionic compound with very strong electrostatic forces, giving MgO an exceptionally high melting point.
See more DAT prep questions and explanations at www.orgoman.com
a) MgO b) KF c) NaCl d) KBr e) Glucose
Answer:
A is correct.
The highest melting point compound is the one with the greatest lattice energy. Small ions with large charges create the strongest attractions — and charge usually dominates size.
Here, Mg²⁺ and O²⁻ form an ionic compound with very strong electrostatic forces, giving MgO an exceptionally high melting point.
See more DAT prep questions and explanations at www.orgoman.com
