Hydrogen gas is colorless and highly flammable.

Intrinsic semiconductors have conductivity that is highly dependent on temperature, as they have no impurities.

Ionic compounds typically have high melting points due to strong electrostatic forces between ions.

Isotopes have the same number of protons but different numbers of neutrons.

Linearly polarized light vibrates in a single plane, as opposed to unpolarized light which vibrates in multiple planes.

Lipids are characterized by their insolubility in water due to their hydrophobic nature.

Noble gases have a complete valence shell, making them largely unreactive.

Non-Newtonian fluids exhibit a change in viscosity with the rate of shear applied.

Optical isomers, or enantiomers, rotate plane-polarized light in opposite directions.

Overdamped systems return to equilibrium slowly without oscillating, as the damping is strong.

P-block elements exhibit varied oxidation states due to their ability to lose or gain electrons.

S-block elements have low electronegativity.

Saturated hydrocarbons contain only single bonds between carbon atoms.

Solids have a definite shape and are not compressible; they do not flow like liquids or gases.

Starch has a branched structure, which allows it to store energy efficiently.

Structural isomers have different connectivity of atoms, leading to different compounds.

Synthetic fibers are known for their durability and are made from chemical processes, unlike natural fibers.

The +I effect is characterized by electron donation through the inductive effect.

+M effect refers to the donation of electron density through resonance.

The inductive effect decreases with distance from the electronegative atom or group.

Thermoplastic polymers can be reshaped upon heating, unlike thermosetting polymers.

Thermosetting polymers do not melt upon heating; they harden permanently after being set.

Transition metals are known for forming colored compounds due to d-d electron transitions.

Underdamped oscillations occur when the damping is weak, allowing the system to oscillate with a gradually decreasing amplitude.

Alkaline earth metals typically form basic oxides.

Alkynes generally have higher boiling points than alkenes due to stronger intermolecular forces.

Carboxylic acids have high boiling points due to hydrogen bonding.

D-block elements typically form colored compounds due to d-d electron transitions.

F-block elements typically form colored ions due to the presence of unpaired electrons in f-orbitals.

Lanthanides are known for their high density, which is a characteristic property of these elements.