Which of the following best describes why ionic compounds like potassium bromide (KBr) do NOT conduct electricity in solid form but do in molten form?

Question

Which of the following best describes why ionic compounds like potassium bromide (KBr) do NOT conduct electricity in solid form but do in molten form? — Exam MCQ

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C. Ionic bonds prevent ion movement in solid KBr. — Ionic compounds like potassium bromide do not conduct electricity in solid form because ionic bonds prevent ion movement. In solid form, potassium bromide has ions that are locked tightly in a crystal lattice by strong ionic bonds. As the ions can't move, electric current cannot flow. When KBr is melted, the rigid structure breaks down, and ions are free to move, allowing them to carry electric current.

rrbjepyq.in · Answer

A. Solid KBr has weak ions that do not conduct electricity.

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B. In molten form, KBr decomposes into gaseous atoms.

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D. Solid KBr consists of neutral atoms with no free electrons.

Which of the following best describes why ionic compounds like potassium bromide (KBr) do NOT conduct electricity in solid form but do in molten form?

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