Cellulose is a structural polysaccharide found in the cell walls of plants.

A subset is a set that contains elements from another set. {1, 2} is a subset of {1, 2, 3}.

A subset can only contain elements that are in the original set. {x, y} is a valid subset of {x, y, z}.

1-butyne is a terminal alkyne because it has a triple bond at the end of the carbon chain.

Molarity is defined as moles of solute per liter of solution.

Joule is the unit of energy in the SI system, defined as the work done when a force of one newton displaces an object by one meter.

Enthalpy can be expressed in Joules, Calories, and Kilojoules.

Pascal (Pa) is the SI unit of pressure, defined as one newton per square meter.

The NAND gate is a universal gate because it can be used to create any other gate.

Alkanes are saturated hydrocarbons with the general formula CnH2n+2. C4H10 (butane) fits this formula.

An even function satisfies f(x) = f(-x). f(x) = x^2 is even.

The –F group is an example of a -I effect as it withdraws electron density through sigma bonds.

All halogens (-F, -Cl, -Br, -I) exhibit -I effect, but -F is the strongest among them.

The –NO2 group withdraws electron density through resonance, exhibiting a -M effect.

Baking a cake is a chemical change as it results in the formation of new substances.

Acetaldehyde can exist in two forms (keto and enol) that readily interconvert, demonstrating tautomeric isomerism.

Nylon-6,6 is a copolymer made from two different monomers: hexamethylenediamine and adipic acid.

Sugar is an example of a crystalline solid, characterized by a well-ordered structure.

In the reaction 2H2O2 → 2H2O + O2, hydrogen peroxide is both oxidized and reduced.

BF3 is a Lewis acid as it can accept a pair of electrons.

Frictional force is an example of a non-conservative force as it dissipates energy as heat.

Magnetic force is an example of a non-contact force, as it acts at a distance.

Cornstarch in water (oobleck) is a non-Newtonian fluid that exhibits varying viscosity depending on the shear rate.

The adsorption of O2 on activated charcoal is an example of physical adsorption.

Dissolving sugar in water is a physical change as it does not alter the chemical composition.

Sodium lauryl sulfate is a synthetic detergent commonly used in personal care products.

Polyvinyl chloride (PVC) is a synthetic polymer widely used in construction and plumbing.

An adiabatic process is one in which no heat is exchanged with the surroundings. Compressing a gas in a piston without heat exchange is an example.

Penicillin is a well-known antibiotic used to treat bacterial infections.

Photosynthesis is an endothermic process as it absorbs energy from sunlight.