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Question 86Asked in RRB JE CBT-1, 16 Dec 2024, Shift 2 (12:45 PM)

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?

  1. ASolid KBr has weak ions that do not conduct electricity.
  2. BIn molten form, KBr decomposes into gaseous atoms.
  3. CIonic bonds prevent ion movement in solid KBr.
  4. DSolid KBr consists of neutral atoms with no free electrons.
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Correct answer: (C) Ionic bonds prevent ion movement in solid KBr.

From RRB JE CBT-1 PYQ 16 Dec 2024, Shift 2 (12:45 PM)

This is question 86 of RRB JE CBT-1 PYQ 16 Dec 2024, Shift 2 (12:45 PM). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.