Binary molecular compounds and chemical formula Quiz

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.

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.

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.

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).

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.

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.

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.

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.

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.

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".