MCQ practice · SSC Chemistry Board questions · Chapter 8: Chemistry and Energy
Which one's aqueous solution does not conduct electricity?
Think it through first, then pick an option.
- a Blue vitriol
- b Sugar
- c Ammonia
- d Vinegar
Answer and explanation
Correct answer: b Sugar
Sugar is covalent and gives no ions in water, so its solution does not conduct.
Why the other options are wrong
- a Blue vitriol: Blue vitriol is copper sulphate, a strong electrolyte; its solution conducts.
- c Ammonia: Ammonia solution (ammonium hydroxide) is a weak electrolyte; it conducts a little.
- d Vinegar: Vinegar holds ethanoic acid, a weak electrolyte; it conducts a little.
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