Fossil fuels are not products of biotechnology; they are natural resources formed from ancient organic matter.

Glucose is not a product of cellular respiration; it is a reactant that is broken down to produce ATP, water, and carbon dioxide.

Sugar is not a product of microbial fermentation; it is a substrate that microbes ferment.

Glucose is not a product of respiration; it is a reactant that is broken down during the process.

A circle is defined as a round shape with no corners.

A convex polygon cannot have curved sides; all sides must be straight.

In a geometric progression, the terms are numeric and follow a specific ratio; thus, non-numeric terms do not form a valid GP.

In a geometric series, the ratio between consecutive terms is constant, not the difference.

While a parallelogram has opposite sides and angles that are equal, it does not necessarily have all angles as right angles unless it is a rectangle.

In a regular polygon, all sides and angles are equal, and the vertices are convex, not concave.

In a rhombus, while all sides are equal and diagonals bisect each other at right angles, the diagonals are not necessarily equal in length.

In a square, all angles are right angles (90 degrees), not acute.

An isosceles triangle has two equal sides and the angles opposite those sides are equal, but it does not have all angles equal unless it is also equilateral.

Crystalline solids exhibit anisotropy, meaning their properties vary with direction. Isotropy is a property of amorphous solids.

Elastomers typically do not have good thermal stability; they are more flexible and can return to their original shape after deformation.

An even number is not always a prime number; in fact, the only even prime number is 2.

The statement a^m + b^m = (a+b)^m is not a property of exponents; it is only true for m=1.

F-block elements are generally magnetic due to unpaired electrons, so 'Non-magnetic' is not a property.

In a geometric progression, the common ratio cannot be zero, as it would invalidate the progression.

The sum of the terms in a harmonic progression is not necessarily an integer, as the terms can be fractions.

The sum of the first n terms of a harmonic progression diverges as n approaches infinity, hence it is not finite.

Hydrogen is not highly soluble in water; it is actually sparingly soluble.

Ionic compounds do not conduct electricity in solid state; they conduct when molten or dissolved.

The last statement is incorrect as it does not follow the properties of logarithms.

Brittleness is not a property of metals; they are typically malleable and ductile.

Modular arithmetic is commutative for addition and multiplication, hence non-commutativity is not a property.

Nitrogen is colorless, odorless, and diatomic, but it does not support combustion.

Polygons are defined as shapes made up of straight line segments, so having curved sides disqualifies a shape from being a polygon.

Brittleness is generally not a property of polymers; they are usually more flexible.

While coefficients can be negative in certain expansions, they are not always negative.