Binary molecular compounds and chemical formula Quiz

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Questions: 10 | Attempts: 277 | Updated: Aug 16, 2023

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Binary Molecular Compounds And Chemical Formula Quiz - Quiz

So. prepare yourself for a chemistry brainstorming session that we have brought with this binary molecular compounds and chemical formula quiz for you. Binary molecular compounds are known as compounds that consist of exactly two nonmetal elements. Here are some questions for your practice and a better understanding of binary molecular compounds and chemical formulas. Wish you all the best with this quiz, and try scoring the highest marks! Let's go!

Questions and Answers

1.

Can you name this binary molecular compound? N3S7
- A.
  
  Sulfur hexafluoride
- B.
  
  Trinitrogen heptasulfide
- C.
  
  Diphosphorus pentoxide
- D.
  
  None of these
Correct Answer
B. Trinitrogen heptasulfide

Explanation
Trinitrogen heptasulfide is the correct name for the binary molecular compound N3S7. The prefix "tri-" indicates that there are three nitrogen atoms, and the prefix "hepta-" indicates that there are seven sulfur atoms in the compound. Therefore, the name accurately represents the composition of the compound.

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2.

Can you name this binary molecular compound? P2O5
- A.
  
  Sulfur hexafluoride
- B.
  
  Disilicon Trioxide
- C.
  
  Selenium Difluoride
- D.
  
  Diphosphorus pentoxide
Correct Answer
D. Diphosphorus pentoxide

Explanation
Diphosphorus pentoxide is the correct answer because the compound formula P2O5 indicates that it contains two phosphorus atoms (di- prefix) and five oxygen atoms (penta- prefix).

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3.

What would be the prefix in a binary molecular compound name with 6 atoms?
- A.
  
  Hexa
- B.
  
  Tetra
- C.
  
  Tri
- D.
  
  Hepta
Correct Answer
A. Hexa

Explanation
The prefix "hexa" indicates that there are six atoms in the binary molecular compound. In binary compounds, the prefix is used to indicate the number of atoms of each element present. In this case, "hexa" signifies that there are six atoms, which is the correct answer.

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4.

Can you name this binary molecular compound? NO2
- A.
  
  Sulfur hexafluoride
- B.
  
  Selenium Difluoride
- C.
  
  Nitrogen dioxide
- D.
  
  None of these
Correct Answer
C. Nitrogen dioxide

Explanation
The correct answer is Nitrogen dioxide because the molecular formula NO2 corresponds to nitrogen dioxide. Sulfur hexafluoride (SF6) and selenium difluoride (SeF2) are different compounds with different molecular formulas. Therefore, they are not the correct answer. The option "None of these" is also incorrect as the correct answer is given.

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5.

What would be the prefix in a binary molecular compound name with 2 atoms?
- A.
  
  Di
- B.
  
  Mono
- C.
  
  Tri
- D.
  
  Tetra
Correct Answer
A. Di

Explanation
In a binary molecular compound name with 2 atoms, the prefix "di" is used. This prefix indicates that there are two atoms of the second element in the compound. For example, in the compound carbon dioxide (CO2), the prefix "di" is used to indicate that there are two oxygen atoms present.

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6.

Can you name this binary molecular compound? CCl4
- A.
  
  Carbon tetrabromide
- B.
  
  Carbon tetrachloride
- C.
  
  Nitrogen dioxide
- D.
  
  Carbon monoxide
Correct Answer
B. Carbon tetrachloride

Explanation
Carbon tetrachloride is the correct answer because the compound CCl4 is commonly known as carbon tetrachloride. It is a binary molecular compound consisting of carbon and chlorine atoms. The prefix "tetra-" indicates that there are four chlorine atoms bonded to a single carbon atom in the molecule. Carbon tetrachloride is a colorless liquid that was once widely used as a solvent and in fire extinguishers, but its use has been restricted due to its harmful effects on human health and the environment.

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7.

What would be the prefix in a binary molecular compound name with 5 atoms?
- A.
  
  Tetra
- B.
  
  Mono
- C.
  
  Octa
- D.
  
  Penta
Correct Answer
D. Penta

Explanation
The prefix "penta" indicates that there are 5 atoms in the binary molecular compound. In binary compounds, the prefix is used to indicate the number of atoms of each element present in the compound. In this case, "penta" suggests that there are 5 atoms of the element(s) involved in the compound.

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8.

Can you name this binary molecular compound? CO
- A.
  
  Carbon monoxide
- B.
  
  Carbon tetrabromide
- C.
  
  Diarsenic pentoxide
- D.
  
  None of these
Correct Answer
A. Carbon monoxide

Explanation
The given compound CO is named carbon monoxide. In this compound, there is one carbon atom bonded to one oxygen atom. The prefix "mono-" is used to indicate that there is only one oxygen atom in the compound. Therefore, the correct answer is carbon monoxide.

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9.

What would be the prefix in a binary molecular compound name with 8 atoms?
- A.
  
  Tetra
- B.
  
  Nona
- C.
  
  Octa
- D.
  
  Deca
Correct Answer
C. Octa

Explanation
The prefix "octa" indicates that there are 8 atoms in the binary molecular compound. In binary molecular compounds, the prefixes indicate the number of atoms of each element present in the compound. In this case, "octa" suggests that there are 8 atoms of a particular element in the compound.

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10.

The official name for H2O is
- A.
  
  Dihydrogen Monoxide
- B.
  
  Oxygen Dinitride
- C.
  
  Agua
- D.
  
  Aqua
Correct Answer
A. Dihydrogen Monoxide

Explanation
The official name for H2O is "Dihydrogen Monoxide" because it accurately represents the composition of water, which consists of two hydrogen atoms and one oxygen atom. This name follows the naming convention for chemical compounds, where the prefix "di-" indicates two atoms of the first element, and the second element is named with its usual ending "-ide".

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Current Version
Aug 16, 2023

Quiz Edited by
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Dec 01, 2022

Quiz Created by
Keith Foster

Binary molecular compounds and chemical formula Quiz

Can you name this binary molecular compound? N3S7

Can you name this binary molecular compound? P2O5

What would be the prefix in a binary molecular compound name with 6 atoms?

Can you name this binary molecular compound? NO2

What would be the prefix in a binary molecular compound name with 2 atoms?

Can you name this binary molecular compound? CCl4

What would be the prefix in a binary molecular compound name with 5 atoms?

Can you name this binary molecular compound? CO

What would be the prefix in a binary molecular compound name with 8 atoms?

The official name for H2O is