Untitled Quiz
34 Questions
3 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What color indicates the presence of chlorine in a solution?

  • Brown
  • Colorless
  • Bright yellow
  • Very pale green (correct)

    • What happens when potassium bromide is combined with chlorine?

  • Bromine is displaced and a yellow solution forms (correct)
  • No reaction occurs
  • Chlorine gas is released
  • A green solution is formed

    • What is the significance of adding nitric acid when testing for halide ions with silver nitrate?

  • It transforms halides into nitrates
  • It reacts with carbonates to avoid interference in results (correct)
  • It increases the solubility of halides
  • It enhances the color of the precipitate

    • Which of the following correctly represents the reaction between chlorine and iodide ions?

    <p>Cl2(aq) + 2I-(aq) → 2Cl-(aq) + I2(aq) (C)</p> Signup and view all the answers

    What are the products when bromine reacts with iodide ions?

    <p>Br2(aq) and 2I-(aq) (D)</p> Signup and view all the answers

    What role does H2SO4 play in the reaction with NaCl?

    <p>Acid (proton donor) (B)</p> Signup and view all the answers

    What gas is produced when NaBr reacts with H2SO4?

    <p>HBr (B)</p> Signup and view all the answers

    What observation indicates the presence of HCl during the reaction between NaCl and H2SO4?

    <p>White steamy fumes (C)</p> Signup and view all the answers

    What is the overall reaction when bromide ions are involved with H2SO4?

    <p>2NaBr + 3H2SO4 → 2NaHSO4 + SO2 + Br2 + 2H2O (C)</p> Signup and view all the answers

    What is the reduction product when iodide ions reduce the sulfur in H2SO4?

    <p>S (C)</p> Signup and view all the answers

    What is the physical state of Bromine at room temperature?

    <p>Red liquid (B)</p> Signup and view all the answers

    Which halogen has the highest electronegativity?

    <p>Fluorine (A)</p> Signup and view all the answers

    What happens to the melting and boiling points of the halogens as you move down the group?

    <p>They increase (B)</p> Signup and view all the answers

    What color is Chlorine when dissolved in water?

    <p>Very pale green (C)</p> Signup and view all the answers

    How does the oxidizing strength of halogens change as you go down the group?

    <p>It decreases down the group (C)</p> Signup and view all the answers

    Which of the following halogens can displace both bromide and iodide ions from their compounds?

    <p>Chlorine (A)</p> Signup and view all the answers

    What effect does increasing atomic radii have on electronegativity?

    <p>Decreases electronegativity (C)</p> Signup and view all the answers

    What color solution indicates the presence of Iodine in a test tube?

    <p>Brown (A)</p> Signup and view all the answers

    What color precipitate is produced when Ag+ reacts with I-?

    <p>Pale yellow (C)</p> Signup and view all the answers

    Which of the following halides produces a white precipitate when reacted with Ag+?

    <p>Chloride (C)</p> Signup and view all the answers

    What is the result of treating AgBr with concentrated ammonia?

    <p>It forms a colorless solution. (B)</p> Signup and view all the answers

    Why do fluoride and chloride ions not act as reducing agents in reactions with concentrated sulfuric acid?

    <p>They are much weaker reducing agents. (B)</p> Signup and view all the answers

    What is formed when NaF reacts with H2SO4?

    <p>NaHSO4 and HF (D)</p> Signup and view all the answers

    How does the reducing power of halides change within group 7 elements?

    <p>It increases as you move down the group. (A)</p> Signup and view all the answers

    What happens to silver iodide (AgI) when treated with ammonia?

    <p>It does not react due to its insolubility. (D)</p> Signup and view all the answers

    What is the product of the reaction between Ag+ and Br- ions?

    <p>AgBr(s) (B)</p> Signup and view all the answers

    What is the role of H2SO4 in the first step of the reaction involving Iodine?

    <p>It plays the role of an acid. (D)</p> Signup and view all the answers

    Which product is NOT formed in the redox reactions involving H2SO4 and iodide ions?

    <p>Oxygen (O2) (B)</p> Signup and view all the answers

    What is the characteristic smell of Hydrogen sulfide (H2S) often compared to?

    <p>Rotten eggs (D)</p> Signup and view all the answers

    In the disproportionation of chlorine, which of the following reactions occurs?

    <p>Chlorine is oxidized while chlorine atoms are reduced. (B)</p> Signup and view all the answers

    What happens to the greenish color of chlorine water when it reacts in sunlight?

    <p>It fades as chlorine reacts and O2 is produced. (B)</p> Signup and view all the answers

    During the reaction of chlorine with water, what is formed along with HCl?

    <p>HClO (A)</p> Signup and view all the answers

    What is the benefit of chlorine in water treatment?

    <p>It kills bacteria effectively. (D)</p> Signup and view all the answers

    Which of the following statements about the product of disproportionation reactions of chlorine is incorrect?

    <p>Both HCl and HClO turn the water green. (C)</p> Signup and view all the answers

    More Like This

    Untitled Quiz
    6 questions

    Untitled Quiz

    AdoredHealing avatar
    AdoredHealing
    Untitled Quiz
    37 questions

    Untitled Quiz

    WellReceivedSquirrel7948 avatar
    WellReceivedSquirrel7948
    Untitled Quiz
    18 questions

    Untitled Quiz

    RighteousIguana avatar
    RighteousIguana
    Untitled Quiz
    48 questions

    Untitled Quiz

    StraightforwardStatueOfLiberty avatar
    StraightforwardStatueOfLiberty
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser