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DP IB Chemistry: SL

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Home / IB / Chemistry: SL / DP / Topic Questions / 8. Acids & Bases / 8.3 Acid Deposition / Multiple Choice: Paper 1


8.3 Acid Deposition

Question 1

Marks: 1

Acid rain can be up to 50 times more acidic than normal rain, which has a pH around 5.5. What is the approximate concentration of H+ in acid rain?

  • 2.50 size 16px cross times10-3 mol dm-3 

  • 2.50 size 16px cross times 10-4 mol dm-3 

  • 2.50 size 16px cross times 10-5 mol dm-3 

  • 50.0 begin mathsize 16px style cross times end style 10-4 mol dm-3 

Choose your answer
  

Question 2

Marks: 1

Natural gas contains on average 5.5 mg / m3 of sulfur in the form of hydrogen sulfide, H2S (Mr = 34). If a typical household in the UK consumes 0.198 m3 of gas per day, what is the average annual emission of sulfur in g per household?

  • 5.5 space cross times space 0.198 space cross times space 365

  • begin mathsize 16px style fraction numerator 5.5 blank cross times blank 0.198 blank cross times blank 365 blank cross times blank 34 over denominator 1000 blank cross times blank 32 end fraction end style

  • begin mathsize 16px style fraction numerator 5.5 blank cross times blank 0.198 blank cross times blank 365 over denominator 1000 end fraction end style

  • begin mathsize 16px style fraction numerator 5.5 blank cross times blank 0.198 blank cross times blank 365 blank cross times blank 32 over denominator 1000 blank cross times blank 34 end fraction end style

Choose your answer
  

Question 3

Marks: 1

Nitrous acid is produced when nitrogen dioxide dissolves in water to produce acid rain. What is the correct Lewis structure for nitrous acid?

q3-8-3-mcq-hard-ib-chemistry-sl

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    Question 4

    Marks: 1

    Hydroxyl free radicals are thought to be involved in complex reactions converting sulfur dioxide into sulfur trioxide in the atmosphere.

    OH•  + SO2 →    •HOSO2

    •HOSO2 + O2 → •HO2 + SO3  

    Which is true?

    • OH• is catalytic

    • •HOSO2 contains 24 electrons

    • Both reactions are redox

    • The first reaction is exothermic

    Choose your answer
      

    Question 5

    Marks: 1

    Iron structures can be damaged by dry deposition such as the equation below:

    Fe (s) + SO2 (g) + O2 (g)  →   FeSO4 (s)

    Given that,

    ΔHf Ө   (SO2) = -297 kJ mol-1

    ΔHfӨ    (FeSO4)= -929 kJ mol-1

    What is the enthalpy change for this reaction?

    • -297 - 929

    • 297 + 929

    • -297 + 929

    • 297 - 929

    Choose your answer
      

    Question 6

    Marks: 1

    Acid deposition results in leaching of aluminium ions from the soil. Which are true?

    1. Al3+ ions damage plants roots
    2. Al3+ ions damage fish gills
    3. Al3+ ions affect human health
    • I and II only

    • I and III only

    • II and III only

    • I, II and III

    Choose your answer
      

    Question 7

    Marks: 1

    The equilibrium constants for the dissociation of nitrous and sulphurous acid found in acid rain are as follows:

    HNO2 (aq) ⇌  H+ (aq) + NO2- (aq)     Kc1 =  7.2  10-4 mol dm-3

    H2SO3 (aq) ⇌  H+ (aq) + HSO3- (aq)    Kc2 = 1.3  10-2 mol dm-3

    Which is true?

     

    Stronger acid

    Effect on Kc of mixing the same volume and concentration the acids

    A

    Nitrous

    No effect

    B

    Sulfurous

    No effect

    C

    Nitrous

    Kc2 decreases

    D

    Sulfurous

    Kc1 decreases

      Choose your answer
        

      Question 8

      Marks: 1

      How many different types of ions can be found in acid rain, assuming it contains a mixture of sulfuric, sulfurous, nitric and nitrous acids?

      • 4

      • 5

      • 6

      • 7

      Choose your answer
        

      Question 9

      Marks: 1

      Historic buildings and statues have frequently suffered chemical corrosion from acid rain. Which building materials would be unaffected by this?

      • Marble

      • Limestone

      • Granite

      • Lime Mortar

      Choose your answer
        

      Question 10

      Marks: 1

      Which is true about the hydrogensulfate ion, HSO4-, found in acid rain?

      1. It is amphiprotic
      2. It is amphoteric
      3. Sulfur is in its highest oxidation state
      • I and II only

      • I and III only

      • II and III only

      • I, II and III

      Choose your answer