NaCl is a hard and high-melting substance, as it has strong ionic bonds between its ions. However, it is a poor electrical conductor as its ions are held in a fixed lattice structure and cannot move freely to carry an electric charge.

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A Crystal of NaCl Is

Question 47

Multiple Choice

A crystal of NaCl is

A) hard, high-melting, and a good electrical conductor.
B) soft, low-melting, and a good electrical conductor.
C) hard, high-melting, and a poor electrical conductor.
D) soft, high-melting, and a poor electrical conductor.
E) soft, low-melting, and a poor electrical conductor.

Correct Answer: