Multiple choice general knowledge science & technology

current is flowing through water when __________

  1. FCl is added

  2. NaCl is added

  3. Carbon is added

  4. chlorine is added
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Pure water is a poor conductor of electricity. When NaCl (sodium chloride) is added, it dissociates into Na+ and Cl- ions, making the solution conductive. Options A (FCl) is not a standard compound, and carbon/chlorine don't produce the same ionic conduction effect.

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