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The Chemistry of Acids

Daniel Borg 10 preguntas 1,0 (1 valoración)

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Preguntas del test (10)

  1. 1Which of the following options best describes the properties of acids?
    1. ATaste Bitter, pH above 7, Irritant, Aqueous
    2. BTaste Sour, pH above 7, release H+ ions in solution
    3. CTaste Sour, pH lower than 7, Explosive, Aqueous
    4. DTaste Sour, pH lower than 7, Corrosive, Aqueous
  2. 2Which of the acids below are strong mineral acids? (multiple answers are correct)
    1. AHydrochloric acid - HCl
    2. BNitrous Acid - HNO2
    3. CSulfurous acid - H2SO3
    4. DSulfuric acid - H2SO4
    5. ENitric Acid - HNO3
  3. 3When acids dissolve in water, they a"split-up" to release H+ ions. Which other terms can be used instead of the term "split-up"?
    1. ADissociate
    2. BDisintegrate
    3. CDisperse
    4. DIonise
  4. 4Which ionisation equation best describes how CH3COOH (ethanoic acid) dissociates in solution?
    1. ACH3COOH --> 2H+ + CH2OO-
    2. BCH3COOH --> CH3COO- + H+
    3. CCH3COOH --> 3H+ + CHCOO-
  5. 5A strong acid is an acid that:
    1. Ahas a lot of water added to it
    2. Bdissociates (splits up) to release a lot of H+ ions
    3. Cdissociates (splits up) to release a little H+ ions
    4. Dhas little water added to it
  6. 6Basicity refers to the number of H+ ions released by an acid in solution. What do understand by the word monobasic acid?
    1. Areleases two H+ ions in solution (per molecule)
    2. Breleases one H+ ion in solution (per molecule)
    3. Creleases three H+ ions in solution (per molecule)
  7. 7What happens to blue litmus paper when it is dipped in a solution of HCl in methylbenzene?
    1. AIt turns red because the HCl ionises releasing H+ ions. This makes the solution acidic.
    2. BIt remains blue because HCl does not ionise. It does not release H+ ions. The solution remains neutral.
    3. CIt turns white because HCl in methylbenzene is a type of bleach.
    4. DThe litmus paper dissolves completely because HCl in methylbenzene is a very strong acid.
  8. 8Fill in the equations below with the appropriate symbols:
    HCl → [blank_start]H+[blank_end] + Cl‾
    H₂SO₄ → [blank_start]2H+[blank_end] + [blank_start]SO₄²‾[blank_end]
    [blank_start]H₂CO₃[blank_end] → 2H+ + CO₃²‾
    HNO₃ → H+ + [blank_start]NO₃‾[blank_end]
    1. AH++
    2. BH-
    3. CH+
    4. DH
    5. ESO₃²‾
    6. FSO₄²‾
    7. GSO₃
    8. HSO₄
    9. I2H+
    10. JOH-
    11. K2H‾
    12. L2H
    13. MNO₂‾
    14. NNO₃²‾
    15. ONO₃+
    16. PNO₃‾
    17. QHCO₃
    18. RH₂CO₃
    19. SH₂CO₂
    20. TH₃CO₃
  9. 9Which of the following groups of items are ALL acidic?
    1. ACoca cola, Toothpaste, Stomach acid, Baking Soda
    2. BCoca cola, Lemon Juice, Stomach acid, Vinegar
    3. CLemon Juice, Stomach acid, Vinegar, Water
    4. DCoca cola, Bleach, Toothpaste, Lemon Juice
  10. 10The term "Concentrated" acid is the same as the term "Strong Acid"
    1. AVerdadero
    2. BFalso

Información

Descripción
This is a short quiz about acids.
Idioma
English
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Valoración
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