PCl5 has five bonding pairs and no lone pairs, resulting in a trigonal bipyramidal geometry.

C2H4 (ethylene) has a carbon-carbon double bond, and each carbon is sp2 hybridized.

O2+ has a bond order of 2.5, which is higher than O2 (2), O2- (1.5), and O2 2- (1).

In this reaction, sodium (Na) is oxidized as it loses electrons to form Na+.

In the given reaction, MnO4- is reduced to Mn^2+.

F2 is the strongest oxidizing agent among the halogens due to its high electronegativity and ability to gain electrons.

The sum of probabilities of all possible outcomes must equal 1, which is a fundamental principle in probability theory.

A convex lens can produce both real images (when the object is outside the focal length) and virtual images (when the object is within the focal length).

In a geometric progression, the ratio of consecutive terms is indeed constant, which defines the progression.

In a parallelogram, the diagonals bisect each other, which is a defining property of parallelograms.

A potentiometer requires a constant current to ensure accurate measurements of voltage.

In a rectangle, opposite sides are equal and all angles are indeed 90 degrees.

In a rhombus, while all sides are equal and diagonals bisect each other at right angles, the diagonals are not equal in length.

Alcohols have higher boiling points than alkanes due to the presence of hydrogen bonding.

Not all alcohols are volatile; for example, long-chain alcohols have lower volatility.

Alcohols have higher boiling points than alkanes due to hydrogen bonding.

Alkanes are saturated hydrocarbons, meaning they contain only single bonds between carbon atoms.

Alkenes can undergo polymerization due to the presence of a double bond.

Alkynes are generally less reactive than alkenes due to the stability of the triple bond.

Alkynes have a higher boiling point than alkenes due to stronger intermolecular forces.

Amines generally have lower boiling points than alcohols due to the absence of hydrogen bonding in tertiary amines.

Angles subtended by the same arc at the circumference of a circle are equal.

Aromatic amines are less basic than aliphatic amines due to resonance stabilization of the lone pair on nitrogen.

Many aromatic compounds can be carcinogenic, such as benzene, which is known to be harmful to human health.

Base 8 (octal) is not more efficient than base 2 (binary); it simply represents values in a different way.

The buoyant force acting on an object submerged in a fluid is equal to the weight of the fluid displaced by the object.

Carboxylic acids are more acidic than alcohols due to the resonance stabilization of their conjugate base, making the statement 'They are less acidic than alcohols' incorrect.

Carboxylic acids can form hydrogen bonds due to the presence of the -COOH group, which contributes to their higher boiling points compared to hydrocarbons.

Catalysts provide an alternative reaction pathway with a lower activation energy, but they are not consumed in the reaction.

Chemisorption involves the formation of strong chemical bonds between the adsorbate and the surface, making it generally irreversible.