What is the name of the compound with the formula N 2 O 5 ?

Question

Examoogle · Accepted Answer

The correct answer is Option C: Dinitrogen pentoxide ($N_{2}O_{5}$). The compound $N_{2}O_{5}$ is named according to IUPAC nomenclature rules for binary covalent compounds. Since it consists of two nitrogen atoms and five oxygen atoms, the numerical prefix 'di-' is used for nitrogen and 'penta-' for oxygen, resulting in the name Dinitrogen pentoxide.

Step-by-Step Solution & Concepts:
The compound $N_{2}O_{5}$ is named according to IUPAC nomenclature rules for binary covalent compounds. Since it consists of two nitrogen atoms and five oxygen atoms, the numerical prefix 'di-' is used for nitrogen and 'penta-' for oxygen, resulting in the name Dinitrogen pentoxide.

Working Principle: In covalent binary compounds, the element with the lower electronegativity (or the one appearing further to the left/bottom in the periodic table) is named first. Prefixes like 'di-', 'tri-', 'tetra-', and 'penta-' are used to indicate the number of atoms of each element present in the molecule. For $N_{2}O_{5}$, the prefix 'di-' for two atoms of nitrogen and 'penta-' for five atoms of oxygen leads to the chemical name Dinitrogen pentoxide.

Key Formulas: $N_{2}O_{5} \rightarrow 2NO_{2}^{+} + NO_{3}^{-}$; $2N_{2}O_{5} \rightleftharpoons 4NO_{2} + O_{2}$

Key Points: Dinitrogen pentoxide is a strong oxidizing agent.; It is a volatile white crystalline solid at room temperature.; It acts as an anhydride of nitric acid ($HNO_{3}$).; It exhibits covalent character in the gas phase and ionic structure ($NO_{2}^{+}$ and $NO_{3}^{-}$) in the solid state.

Advantages: Useful as a nitrating agent in organic synthesis.

Disadvantages: Highly reactive and potentially explosive under certain conditions.; Unstable; decomposes readily into nitrogen dioxide and oxygen.

Applications: Used in the production of high-energy explosives.; Acts as a reagent in synthetic organic chemistry for nitration.

Additional Info: Option A (Nitric oxide) refers to $NO$.. Option B (Nitrous oxide) refers to $N_{2}O$ (laughing gas).. Option D (Nitrogen dioxide) refers to $NO_{2}$.

Answer: C is correct — The chemical formula $N_{2}O_{5}$ represents Dinitrogen pentoxide according to IUPAC prefix-based nomenclature.

Exam Tip: Always pay attention to the numerical prefixes in covalent compounds; they explicitly state the number of atoms present, unlike ionic compounds where ratios are determined by valency.

Examoogle · Answer

Option A: Nitric oxide ($NO$)

Examoogle · Answer

Option B: Nitrous oxide ($N_{2}O$)

Examoogle · Answer

Option D: Nitrogen dioxide ($NO_{2}$)

Correct Answer

Solve 10,000+ More Questions with AI Tutor

Discussion (0)

Correct Answer

Solve 10,000+ More Questions with AI Tutor

Related Questions

Discussion (0)