Explanation

Molecular crystals are generally soft and stable.

They are composed of molecules held together by relatively weak intermolecular forces, which results in them being easily deformed and having low melting points.

While they are generally stable under normal conditions, they can become unstable under extreme temperatures or pressures.

Explanation

Emission spectrum is produced when a substance emits light/radiation, showing specific wavelengths.

Explanation

The triple point of water is the unique temperature and pressure at which water coexists in all three phases — solid, liquid, and gas — in equilibrium.

Temperature: 273.16 Kelvin

This is used as a fundamental fixed point in defining the Kelvin temperature scale.

Explanation

Silicon has the highest melting point among the given elements due to its giant covalent structure.

It requires more energy to break the strong covalent bonds.

Explanation

Devised means سوچ یا تخلیقی صلاحیتوں کے ساتھ ایجاد ، منصوبہ بندی کرنے یا کچھ نیا بنانے کے لئے

Invented means سوچ یا تخلیقی صلاحیتوں کے ساتھ ایجاد ، منصوبہ بندی کرنے یا کچھ نیا بنانے کے لئے

Explanation

Explanation

A strong oxidizing agent has a greater Reduction potential. 

An oxidizing agent readily accepts electrons, which corresponds to a high reduction potential.

A higher reduction potential indicates a greater tendency for a substance to be reduced (gain electrons) and thus act as an oxidizing agent. 

Explanation

For a diatomic gas (like O₂ or N₂), the ratio of specific heats 𝐶𝑝/𝐶𝑣 is approximately 1.4.

This ratio is also known as the adiabatic index (γ).

It is used in thermodynamic processes.

Explanation

Amphoteric nature​​ Aluminium oxide is an amphoteric substance, meaning it can react with both acids and bases

It is a chemical compound of aluminium and oxygen with the chemical formula Al2O3.

Explanation

The type of transpiration occurring through special openings in plant stems is called lenticular transpiration.

These openings, known as lenticels, are small pores in the bark of woody stems and allow for gas exchange and water vapor loss.