When HNO 2 reacts with conc. 112 SO4 two gases (P) and (Q) arc produced. The correct statement i

step 1 Answer for the question, here when HNO to react with H2 .S .4, it will give two gases, B plus Q.

When HNO 2 reacts with conc. 112 SO4 two gases (P) and (Q)...

When HNO $_{2}$ reacts with conc. $11_{2} \mathrm{SO}_{4}$ two gases (P) and (Q) arc produced. The correct statement is
(a) Bort arc triaromic and colorless.
(b) Both are triatomic and diamagnetic.
(c) Both are odorless.
(d) None of these

Key Concepts

Physical Properties (Color and Odor)

This concept deals with observable properties such as color and odor, which are influenced by the molecular structure and electronic transitions within a molecule. In the context of nitrogen oxides, differences in the number of atoms and electronic configuration can result in one gas being colorless and the other exhibiting a distinct color, as well as differences in perceptible odors. Understanding these properties is vital in both the identification and practical handling of chemical substances.

Magnetic and Electronic Properties

The magnetic behavior of molecules, such as whether they are paramagnetic or diamagnetic, arises from their electronic configurations, specifically the presence or absence of unpaired electrons. For nitrogen oxides, one species may possess an unpaired electron and be paramagnetic, while another, especially after dimerization, can be diamagnetic. This concept helps explain variations in physical behavior among different molecular forms.

Acid?Catalyzed Decomposition Reactions

This concept refers to reactions in which an acid, such as concentrated sulfuric acid, protonates or otherwise activates a compound (in this case, nitrous acid) leading to its decomposition into reactive intermediates and further products. Such reactions are important in understanding how acids can drive the formation of gaseous species through dehydration or other catalytic routes.

Nitrogen Oxide Formation

This concept involves the generation of nitrogen oxides from the decomposition of nitrous acid under acidic conditions. The process typically yields different nitrogen oxides (for instance, diatomic and triatomic forms) whose chemical identities depend on the reaction conditions. This is a classic example in inorganic chemistry that illustrates how varying conditions can influence the oxidation states and types of products formed.

Molecular Structure and Composition

Understanding the molecular structure of nitrogen oxides is key to predicting their physical and chemical properties. Nitrogen oxides commonly exist in different forms, such as diatomic (two-atom) and triatomic (three-atom) molecules. The number and arrangement of atoms in a molecule determine its bonding, geometry, and subsequent properties like magnetism and reactivity.

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