Question

Which of the following is not a compound?
A.Sugar
B.Common salt
C.Diamond
D.Plaster of Paris

Answer 1

A chemical compound is any material that has two or more different types of atoms (chemical elements) in a set stoichiometric proportion; the notion is most easily grasped when discussing pure chemical substances. Chemical compounds may be transformed into compounds or substances with fewer atoms via chemical reaction because they are made up of set proportions of two or more types of atoms. In the chemical formula, the ratio of each element in the compound is given as a ratio.

Complete answer:
A chemical compound is a material made up of numerous similar molecules (or molecular entities) that are bound together by chemical bonds and contain atoms from many elements. As a result, a molecule made up of only one element's atoms is not a compound.
Compounds are classified into four kinds based on how the component atoms are kept together.
Covalent bonding holds molecules together.
Ionic bonds hold ionic substances together.
Metallic bonds hold intermetallic compounds together.
Coordinate covalent bonds hold some complexes together.
Glucose, fructose, and galactose are examples of simple sugars, often known as monosaccharides. Compound sugars, commonly known as disaccharides or double sugars, are two monosaccharides linked by a glycosidic bond. Sucrose (glucose + fructose), lactose (glucose + galactose), and maltose are common examples (two molecules of glucose). Compound sugars are hydrolyzed into simple sugars in the body.
Salt is a mineral made mostly of sodium chloride (NaCl), a chemical component that belongs to the broader family of salts; rock salt or halite is salt in the form of a natural crystalline mineral. Seawater contains a large amount of salt.
Plaster is a building material that is used to coat walls and ceilings with a protective or ornamental coating, as well as for molding and casting decorative components. In English, "plaster" often refers to a material used for constructing interiors, whereas "render" generally refers to exterior uses. As a result, all of the aforementioned alternatives are compounds.
Diamond is a kind of carbon that has its atoms organized in a diamond cubic crystal structure. Another solid form of carbon known as graphite is the chemically stable form of carbon at normal temperature and pressure, although diamond nearly never transforms to it. Diamond has the highest hardness and thermal conductivity of any natural substance, characteristics that make it ideal for cutting and polishing equipment in industry. They're also why diamond anvil cells may expose materials to pressures encountered deep down.

As a result, option C is accurate.

Note:
Because diamond's atom arrangement is so solid, only a few sorts of impurities may contaminate it (two exceptions being boron and nitrogen). Diamond blue (boron), yellow (nitrogen), brown (faults), green (radiation exposure), purple, pink, orange, or red are the colors of small quantities of defects or impurities (approximately one per million of lattice atoms). The optical dispersion of diamond is likewise rather great (ability to disperse light of different colors).