Cations And Anions

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| By JoshButterworth

JoshButterworth

Community Contributor

Quizzes Created: 2 | Total Attempts: 8,279

Questions: 7 | Attempts: 8,167 | Updated: Aug 20, 2023

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Quiz to test whether you do or not know your important Cations and Anions.
Chemistry AS Level.

Questions and Answers

1.

Which Anion is this?: CO2− 3
- A.
  
  Nitrate
- B.
  
  Carbonate
- C.
  
  Nitrite
- D.
  
  Sulphate
Correct Answer
B. Carbonate

Explanation
The given anion, CO2-, is carbonate. Carbonate is a polyatomic ion composed of one carbon atom and three oxygen atoms. It has a charge of -2, indicated by the negative sign. The molecular formula CO2- indicates that the ion has gained two extra electrons to achieve a stable electron configuration. Carbonate is commonly found in compounds such as calcium carbonate (CaCO3) and sodium carbonate (Na2CO3).

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12
3
2.

Which Anion is this?: SO2- 4
- A.
  
  Sulphate
- B.
  
  Sulphite
- C.
  
  Hydroxide
- D.
  
  Nitrate
Correct Answer
A. SulpHate

Explanation
The given anion, SO2-4, is known as sulphate. This is because the chemical formula for sulphate is SO2-4. Sulphate is a polyatomic ion that consists of one sulphur atom and four oxygen atoms. It has a charge of -2, indicated by the negative sign. Sulphate is commonly found in various compounds such as sulphuric acid and gypsum.

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5
4
3.

What Anion is this?: OH-
- A.
  
  Sulphite
- B.
  
  Nitrite
- C.
  
  Nitrate
- D.
  
  Hydroxide
Correct Answer
D. Hydroxide

Explanation
The correct answer is Hydroxide. The given chemical formula OH- represents a hydroxide ion. A hydroxide ion consists of one oxygen atom bonded with one hydrogen atom, carrying a negative charge. It is commonly found in bases and alkalis.

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5
1
4.

Which Anion is this?: NO2 -
- A.
  
  Nitrite
- B.
  
  Nitrate
- C.
  
  Hydroxide
- D.
  
  Sulphite
Correct Answer
A. Nitrite

Explanation
The correct answer is Nitrite. Nitrite is an anion that consists of one nitrogen atom and two oxygen atoms, with a negative charge. It is commonly found in compounds such as sodium nitrite and potassium nitrite. Nitrite is often used as a food preservative and can also be produced by the human body as a byproduct of the breakdown of nitric oxide.

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4
1
5.

Which Anion is this?: SO2- 3
- A.
  
  Sulphate
- B.
  
  Sulphite
- C.
  
  Nitrite
- D.
  
  Nitrate
Correct Answer
B. SulpHite

Explanation
The correct answer is Sulphite. This is because the chemical formula SO2-3 corresponds to the sulphite ion, which is composed of one sulphur atom and three oxygen atoms. Sulphite is commonly found in various compounds and is used in industries such as food preservation and wine making. It is important to note that sulphate, nitrite, and nitrate have different chemical formulas and compositions, making them incorrect answers for this question.

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2
1
6.

Which Anion is this?: NO3 -
- A.
  
  Nitrite
- B.
  
  Sulphate
- C.
  
  Nitrate
- D.
  
  Hydroxide
Correct Answer
C. Nitrate

Explanation
The correct answer is Nitrate. The anion NO3- is known as nitrate. It consists of one nitrogen atom bonded to three oxygen atoms, and carries a negative charge. Nitrate is commonly found in fertilizers and is an important source of nitrogen for plants. It can also be found in certain foods and is involved in various biochemical processes in the body.

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3
0
7.

True/false; NH4+ (Ammonium), Is the only Cation needed to remember at AS level?
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The given answer is true because at the AS level, NH4+ (Ammonium) is the only cation that students need to remember. Cations are positively charged ions, and NH4+ is the only cation that is commonly encountered at the AS level in chemistry. Other cations like Na+ (Sodium), K+ (Potassium), and Mg2+ (Magnesium) are typically covered at a higher level of study. Therefore, for the purposes of the AS level, NH4+ is the only cation that students need to focus on.

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0
3

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Current Version
Aug 20, 2023

Quiz Edited by
ProProfs Editorial Team
Sep 04, 2012

Quiz Created by
JoshButterworth

Cations And Anions

Which Anion is this?: CO2− 3

Which Anion is this?: SO2- 4

What Anion is this?: OH-

Which Anion is this?: NO2 -

Which Anion is this?: SO2- 3

Which Anion is this?: NO3 -

True/false; NH4+ (Ammonium), Is the only Cation needed to remember at AS level?