MCQ practice · SSC Chemistry Board questions · Chapter 5: Chemical Bond
Which is insoluble in water?
Think it through first, then pick an option.
- a LiCl
- b MgCl₂
- c CH₄
- d NaF
Answer and explanation
Correct answer: c CH₄
Methane is non-polar covalent and does not dissolve in water.
Why the other options are wrong
- a LiCl: LiCl is ionic and dissolves. The answer the book supports is CH₄.
- b MgCl₂: MgCl₂ is ionic and dissolves. The answer the book supports is CH₄.
- d NaF: NaF is ionic and dissolves. The answer the book supports is CH₄.
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