Daniel Borg
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This is a short quiz about acids.

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Daniel Borg
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The Chemistry of Acids

Question 1 of 10

1

Which of the following options best describes the properties of acids?

Select one of the following:

  • Taste Bitter, pH above 7, Irritant, Aqueous

  • Taste Sour, pH above 7, release H+ ions in solution

  • Taste Sour, pH lower than 7, Explosive, Aqueous

  • Taste Sour, pH lower than 7, Corrosive, Aqueous

Explanation

Question 2 of 10

1

Which of the acids below are strong mineral acids? (multiple answers are correct)

Select one or more of the following:

  • Hydrochloric acid - HCl

  • Nitrous Acid - HNO2

  • Sulfurous acid - H2SO3

  • Sulfuric acid - H2SO4

  • Nitric Acid - HNO3

Explanation

Question 3 of 10

1

When acids dissolve in water, they a"split-up" to release H+ ions. Which other terms can be used instead of the term "split-up"?

Select one or more of the following:

  • Dissociate

  • Disintegrate

  • Disperse

  • Ionise

Explanation

Question 4 of 10

1

Which ionisation equation best describes how CH3COOH (ethanoic acid) dissociates in solution?

Select one of the following:

  • CH3COOH --> 2H+ + CH2OO-

  • CH3COOH --> CH3COO- + H+

  • CH3COOH --> 3H+ + CHCOO-

Explanation

Question 5 of 10

1

A strong acid is an acid that:

Select one of the following:

  • has a lot of water added to it

  • dissociates (splits up) to release a lot of H+ ions

  • dissociates (splits up) to release a little H+ ions

  • has little water added to it

Explanation

Question 6 of 10

1

Basicity refers to the number of H+ ions released by an acid in solution. What do understand by the word monobasic acid?

Select one of the following:

  • releases two H+ ions in solution (per molecule)

  • releases one H+ ion in solution (per molecule)

  • releases three H+ ions in solution (per molecule)

Explanation

Question 7 of 10

1

What happens to blue litmus paper when it is dipped in a solution of HCl in methylbenzene?

Select one of the following:

  • It turns red because the HCl ionises releasing H+ ions. This makes the solution acidic.

  • It remains blue because HCl does not ionise. It does not release H+ ions. The solution remains neutral.

  • It turns white because HCl in methylbenzene is a type of bleach.

  • The litmus paper dissolves completely because HCl in methylbenzene is a very strong acid.

Explanation

Question 8 of 10

1

Fill in the equations below with the appropriate symbols:
HCl → + Cl‾
H₂SO₄ → +
→ 2H+ + CO₃²‾
HNO₃ → H+ +

Drag and drop to complete the text.

    H++
    H-
    H+
    H
    SO₃²‾
    SO₄²‾
    SO₃
    SO₄
    2H+
    OH-
    2H‾
    2H
    NO₂‾
    NO₃²‾
    NO₃+
    NO₃‾
    HCO₃
    H₂CO₃
    H₂CO₂
    H₃CO₃

Explanation

Question 9 of 10

1

Which of the following groups of items are ALL acidic?

Select one of the following:

  • Coca cola, Toothpaste, Stomach acid, Baking Soda

  • Coca cola, Lemon Juice, Stomach acid, Vinegar

  • Lemon Juice, Stomach acid, Vinegar, Water

  • Coca cola, Bleach, Toothpaste, Lemon Juice

Explanation

Question 10 of 10

1

The term "Concentrated" acid is the same as the term "Strong Acid"

Select one of the following:

  • True
  • False

Explanation

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