According to Le Chatelier's principle, increasing the concentration of a reactant (O2 in this case) will shift the equilibrium to the right, favoring the formation of products.

Increasing the pressure will shift the equilibrium to the side with fewer moles of gas, which is the right side (2 moles of NH3) in this case.

Reptiles are known for having scales that protect their bodies and reduce water loss.

Kingdom is the most inclusive classification among the options provided, encompassing a large group of related organisms.

Vapor pressure lowering is a colligative property that depends on the number of solute particles in a solution.

All of the listed colligative properties can be used to determine the molar mass of a solute.

Freezing point depression can be used to determine the molar mass of a solute by measuring the decrease in freezing point.

Violet light has the shortest wavelength among the visible spectrum.

A complex number z lies on the unit circle if |z| = 1. For z = 1 + 0i, |z| = √(1² + 0²) = 1. For z = 0 + 1i, |z| = √(0² + 1²) = 1. Both 1 + 0i and 0 + 1i lie on the unit circle.

[Co(NH3)3Cl3] can exhibit geometrical isomerism due to the presence of different ligands in a square planar geometry.

[CoCl2(NH3)4]+ can exhibit geometrical isomerism due to the different arrangements of ligands around the cobalt ion.

The complex [Cr(en)3]3+ exhibits optical isomerism due to its chiral nature.

Ethylenediamine (en) is a bidentate ligand as it can form two bonds with the metal ion.

[Ni(CO)4] is diamagnetic because all electrons are paired in the presence of the strong field ligand CO.

[Co(NH3)6]3+ has unpaired electrons and is therefore paramagnetic.

[Fe(H2O)6]3+ has unpaired electrons, making it paramagnetic, while the others have all paired electrons.

Sodium (Na) can act as a reducing agent as it readily donates electrons.

KMnO4 is a strong oxidizing agent due to the presence of Mn in a high oxidation state.

C3H6O (acetone) is a ketone, characterized by the carbonyl group (C=O) between two carbon atoms.

Dimethylamine is a secondary amine as it has two alkyl groups attached to the nitrogen atom.

Tollen's reagent can oxidize aldehydes but not ketones. Acetone is a ketone and will not react.

Decarboxylation of a carboxylic acid typically yields an alkane.

Decarboxylation of sodium acetate yields methane.

2-bromobutane can undergo elimination to form both 1-butene and 2-butene.

Ester is formed by the reaction of a carboxylic acid with an alcohol in an esterification reaction.

All of the listed compounds can be formed by the esterification of acetic acid with the respective alcohols.

The reaction of an aldehyde with a Grignard reagent forms a primary alcohol after hydrolysis.

2-butanol can be oxidized to form a ketone, specifically butanone.

2-Propanol can be oxidized to form acetone, which is a ketone.

The reaction of an alkyl halide with magnesium forms a Grignard reagent, which is a key intermediate in organic synthesis.