Question

What is the correct formula for dicarbon tetrahydride?

Answer 1

Hint : We must know that the procedure of writing the chemical formula for a chemical compound. A chemical formula is the representation of a compound which tells us about the chemical composition of the atoms/molecules. Carbon tetrachloride is a haloalkane, i.e., a hydrocarbon in which the hydrogen atoms are replaced by halogens.

Complete Step By Step Answer:
The question is talking about the chemical formula which tells about the chemical composition of atoms. Carbon tetrachloride has carbon and chlorine atoms.
Here we know that a chemical formula shows the symbols of the elements in the compound and the ratio of the elements to one another. For example, the chemical formula for water is ${{H}_{2}}O$ which indicates that two atoms of Hydrogen combine with one atom of oxygen.
It can be clearly seen from the name carbon tetrachloride that the compound contains carbon and chlorine atoms. Tetra signifies that the number of chlorine atoms in the molecule is $4.$ So, carbon tetrachloride is composed of one carbon atom and four chlorine atoms. Carbon has four valence electrons and can use all of them to form a bond.
Here answer given in question itself only i.e. Prefixes: "Di" $=~2~$ and "tetra" $=~4.$

Note :
Remember that a chemical formula represents the elements in a compound and their ratios to each other using their symbols. For instance, the chemical formula for water is ${{H}_{2}}O$ as it contains hydrogen and oxygen in it in a $2:1$ ratio indicating that there are 2twoatoms of hydrogen and one atom of oxygen.