Formula of the compound (formed by the combination of carbon and sulphur) is C2S4. The formula has a common factor of 2; therefore, dividing the formula by the common factor gives us the simplest chemical formula, i.e., CS2. This compound is called carbon disulphide.

Chemical Formula and Name of the Compound formed between Carbon and Sulphur

Introduction:
When atoms of different elements combine, they form chemical compounds. The valency of an element determines its combining capacity or the number of electrons it can gain, lose, or share to form a chemical bond. Carbon has a valency of 4, which means it can form four bonds with other atoms. Sulphur, on the other hand, has a valency of 2, allowing it to form two bonds.

Formation of the Compound:
To determine the chemical formula and name of the compound formed between carbon and sulphur, we need to consider their valencies and balance the charges. Since the valency of carbon is 4 and sulphur is 2, we need two sulphur atoms to balance the charges.

Chemical Formula:
The chemical formula of the compound formed between carbon and sulphur is CS2. It indicates that one carbon atom combines with two sulphur atoms.

Name of the Compound:
The compound formed between carbon and sulphur is called Carbon Disulphide.

Explanation:
The chemical formula CS2 indicates that one carbon atom combines with two sulphur atoms to form the compound. Each sulphur atom shares two electrons with the carbon atom, forming a double bond. This double bond allows the carbon atom to fulfill its valency of 4 and the sulphur atoms to fulfill their valency of 2.

Carbon disulphide (CS2) is a colorless liquid compound with a strong odor. It is highly flammable and is commonly used as a solvent for various substances. It has a linear molecular structure, with the carbon atom in the center and the two sulphur atoms on either side.

Summary:
In summary, the compound formed between carbon and sulphur atoms is carbon disulphide (CS2). The chemical formula CS2 represents the combination of one carbon atom with two sulphur atoms. Carbon disulphide is a colorless liquid compound with a strong odor and is commonly used as a solvent. It has a linear molecular structure, and the carbon atom forms a double bond with each sulphur atom to fulfill their respective valencies.