Quiz
The Chemistry of Acids
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Fragen in diesem Quiz (10)
1Which of the following options best describes the properties of acids?
- ATaste Bitter, pH above 7, Irritant, Aqueous
- BTaste Sour, pH above 7, release H+ ions in solution
- CTaste Sour, pH lower than 7, Explosive, Aqueous
- DTaste Sour, pH lower than 7, Corrosive, Aqueous
2Which of the acids below are strong mineral acids? (multiple answers are correct)
- AHydrochloric acid - HCl
- BNitrous Acid - HNO2
- CSulfurous acid - H2SO3
- DSulfuric acid - H2SO4
- ENitric Acid - HNO3
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"?
- ADissociate
- BDisintegrate
- CDisperse
- DIonise
4Which ionisation equation best describes how CH3COOH (ethanoic acid) dissociates in solution?
- ACH3COOH --> 2H+ + CH2OO-
- BCH3COOH --> CH3COO- + H+
- CCH3COOH --> 3H+ + CHCOO-
5A strong acid is an acid that:
- Ahas a lot of water added to it
- Bdissociates (splits up) to release a lot of H+ ions
- Cdissociates (splits up) to release a little H+ ions
- Dhas little water added to it
6Basicity refers to the number of H+ ions released by an acid in solution. What do understand by the word monobasic acid?
- Areleases two H+ ions in solution (per molecule)
- Breleases one H+ ion in solution (per molecule)
- Creleases three H+ ions in solution (per molecule)
7What happens to blue litmus paper when it is dipped in a solution of HCl in methylbenzene?
- AIt turns red because the HCl ionises releasing H+ ions. This makes the solution acidic.
- BIt remains blue because HCl does not ionise. It does not release H+ ions. The solution remains neutral.
- CIt turns white because HCl in methylbenzene is a type of bleach.
- DThe litmus paper dissolves completely because HCl in methylbenzene is a very strong acid.
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]- AH++
- BH-
- CH+
- DH
- ESO₃²‾
- FSO₄²‾
- GSO₃
- HSO₄
- I2H+
- JOH-
- K2H‾
- L2H
- MNO₂‾
- NNO₃²‾
- ONO₃+
- PNO₃‾
- QHCO₃
- RH₂CO₃
- SH₂CO₂
- TH₃CO₃
9Which of the following groups of items are ALL acidic?
- ACoca cola, Toothpaste, Stomach acid, Baking Soda
- BCoca cola, Lemon Juice, Stomach acid, Vinegar
- CLemon Juice, Stomach acid, Vinegar, Water
- DCoca cola, Bleach, Toothpaste, Lemon Juice
10The term "Concentrated" acid is the same as the term "Strong Acid"
- ARichtig
- BFalsch
Informationen
- Beschreibung
- This is a short quiz about acids.
- Autor
- Daniel Borg
- Sprache
- English
- Aufrufe
- 46
- Schlagwörter
- Bewertung
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