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When dissolved in water, NaOH flakes show

Chemistry
JAMB 2002

When dissolved in water, NaOH flakes show

  • A. An endothermic change
  • B. An exothermic change
  • C. A slow reaction
  • D. A rapid reaction
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Correct Answer: Option B
Explanation

When sodium hydroxide dissolves in water, the process is exothermic because the breaking of the ionic bonds in sodium hydroxide releases heat.

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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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