Explanation

A liquid with very high vapour pressure boils at a lower temperature because it reaches atmospheric pressure more quickly.

Boiling occurs when vapour pressure equals external pressure — higher vapour pressure means this happens sooner.

Explanation

Explanation

Most proteins are made up of 20 different amino acids.

These 20 amino acids are commonly referred to as the standard or proteinogenic amino acids.

While other amino acids exist, they are not typically found in the primary structure of proteins that make up most living organisms.

Explanation

Biomass energy comes from plants, which get their energy through photosynthesis using sunlight.

So, the Sun is the original source of energy for all biomass.

Explanation

Orbitals that have the same energy level are called degenerate orbitals.

This concept is important in understanding electron behavior and how they fill atomic orbitals, following principles like the Aufbau principle and Hund's rule.

For example, in a hydrogen atom, all orbitals with the same principal quantum number (n) are degenerate. 

Explanation

Monosaccharides are the building blocks of disaccharides (such as sucrose, lactose, and maltose) and polysaccharides (such as cellulose and starch).

A glycosidic bond is a covalent bond that connects two monosaccharides to form a disaccharide or polysaccharide. 

Explanation

Frequency is the number of occurrences of a repeating event per unit of time.

SI unit hertz (Hz)

In SI base units: s−1

Derivations from other quantities: f = 1 / T

Dimension T^−1

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Explanation

Explanation

According to Coulomb’s Law, force is inversely proportional to the square of distance: F∝ 1/r².

So, if distance is doubled, force becomes 1/(2)² = 1/2.

Explanation

Lithium aluminium hydride (LiAlH₄) is a strong reducing agent.

It reduces carboxylic acids to primary alcohols effectively.