Explanation

The properties used to describe heat are:

• Hot (high temperature)
• Energy (thermal energy)
• Cold (low temperature)

Explanation

In ammonium ion, electrons required between hydrogen ion and nitrogen ion are two.

Explanation

The molecule that is polar and has a dipole moment of 5.33 x 10^-30 Cm is SO2 (sulfur dioxide).

Explanation

Tetrahedral geometry: This means the central carbon atom is surrounded by four atoms (three hydrogen atoms and one chlorine atom) arranged in a three-dimensional pyramid shape. 

Explanation

The dipole moment of H₂O (water) is approximately 1.83 Debye.

This is due to the bent shape and the difference in electronegativity between hydrogen and oxygen.

Explanation

 Fe atomic number = 26 → Fe: [Ar] 3d⁶ 4s²  

Fe²⁺ loses 2 electrons → becomes 3d⁶ → 4 unpaired electrons.  

Others have fewer or no unpaired electrons.

Explanation

Sulphur is a non-metal element.

It does not exhibit the characteristics of metals, such as conductivity, malleability, and ductility.

Instead, it is brittle and non-conductive.

Explanation

Colligative properties are properties of solutions that depend on the number of solute particles in a given amount of solvent and not on the nature of the solute particles.

The four main colligative properties are:

• Vapor Pressure Lowering
• Boiling Point Elevation
• Freezing Point Depression
• Osmotic Pressure

Explanation

Natural rubber consists of polymers of the organic compound isoprene.

Explanation

The carbon-carbon (C-C) bond length in benzene is 1.39 Å (angstroms).

This bond length is intermediate between a single bond (typically around 1.54 Å) and a double bond (typically around 1.34 Å) due to the resonance structure of benzene

Where the electrons are delocalized over the six carbon atoms.

This delocalization results in a uniform bond length throughout the benzene ring.