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MCQ practice · SSC Chemistry Board questions · Chapter 5: Chemical Bond

Dhaka Board 2021

Which salt does not dissolve in water?

Think it through first, then pick an option.

  1. a KNO₃
  2. b MgCl₂
  3. c NaCl
  4. d AgCl
Answer and explanation

Correct answer: d AgCl

AgCl is ionic yet does not dissolve in water: it is the book's exception.

Why the other options are wrong

  • a KNO₃: KNO₃ is ionic, so it dissolves in water.
  • b MgCl₂: MgCl₂ is ionic, so it dissolves in water.
  • c NaCl: NaCl is ionic; table salt dissolves in water.

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