Chemistry Lecture on Halides
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Questions and Answers

What is the order of electronegativity for the halogen acids?

  • HBr > HI > HF > HCl
  • HI > HBr > HCl > HF
  • HCl > HI > HBr > HF
  • HF > HCl > HBr > HI (correct)

    • Why is HF considered the weakest acid among the halogen acids?

  • Fluoride has the highest atomic number.
  • HF has the lowest electronegativity.
  • HF has the smallest ionic size.
  • The negative fluoride ion is highly stable and holds a proton strongly. (correct)

    • Which halide ion has the highest atomic number?

  • Bromide
  • Chloride
  • Iodide (correct)
  • Fluoride

    • Which halogen acid is a colourless gas that fumes in moist air?

    <p>Hydrochloric acid</p> Signup and view all the answers

    What happens when Hydrofluoric acid is dissolved in water?

    <p>It produces a weakly acidic solution.</p> Signup and view all the answers

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