Explanation

Dental amalgam is a mixture of liquid mercury in solid metal alloys like silver, tin, and copper.

It forms a solid solution once set, where the liquid (mercury) is dispersed in the solid.

Explanation

Rhombic sulphur and monoclinic sulphur coexist at 95.5°C, known as the transition temperature.

Below 95.5°C, rhombic sulphur is stable, while above it, monoclinic sulphur is more stable.

Explanation

An electrophile is a species that seeks electrons and can accept an electron pair.

C₂H₅OCH₃ (Ethyl methyl ether) is not an electrophile.

Because it lacks an electron-deficient center and does not readily accept electron pairs.

Explanation

Explanation

Internal energy is primarily a function of temperature.

For a given substance, internal energy (U) is related to the temperature of the system, as it reflects the kinetic and potential energy of the molecules.

Explanation

The empirical formula shows the simplest whole-number ratio of atoms in a compound (e.g., CH₂O for glucose).

It does not reflect the actual number of atoms like the molecular formula does, just their simplest ratio.

Explanation

Methane (CH₄) is produced during the anaerobic fermentation of biomass.

It is the main component of biogas.

It is widely used as a renewable energy source.

Explanation

Non-electrolytes are substances that do not dissociate into ions in solution, so they do not conduct electricity.

Examples include sugar and pure water.

Explanation

Plastic is a synthetic material made from polymers.

It primarily derived from petrochemicals.

Plastic is entirely man-made.

It is widely used due to its versatility and durability.

Explanation

A covalent bond is formed when two atoms share electrons to achieve stability.

It commonly occurs between non-metal atoms, like in H₂O or CO₂.