Practice question

What is pH and what does a pH of 1 indicate about a substance?

  1. pH measures flammability; a pH of 1 means non-flammable
  2. pH measures acidity/alkalinity; a pH of 1 indicates a strong acid
  3. pH measures toxicity; a pH of 1 indicates low toxicity
  4. pH measures vapor pressure; a pH of 1 indicates low vapor pressure

Answer: B — pH measures acidity/alkalinity; a pH of 1 indicates a strong acid

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