Question

The formula of carbon tetrachloride is:
(A) $CHC{{l}_{3}}$
(B) $C{{H}_{2}}C{{l}_{4}}$
(C) $CC{{l}_{4}}$
(D) $C{{H}_{3}}Cl$

Answer 1

Hint: The question is talking about the chemical formula which tells about the chemical composition of atoms. Carbon tetrachloride has carbon and chlorine atoms.

Complete step by step solution:
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 2 atoms of Hydrogen combine with 1 atom of oxygen.
And for carbon tetrachloride, it has carbon atoms in its formula and four chlorine atoms, and this we can know from the word ‘tetra’ which is used for four numbers of atoms.
And we know that the valency of carbon is four and it can form four bonds. So the chemical formula of carbon tetrachloride is: $CC{{l}_{4}}$
So, the correct answer is option “C”.
“A”, is the incorrect option because it has three chlorines and one hydrogen.
“B”, is the incorrect option, because in this valency of carbon is not fulfilled.
“D”, is the incorrect option because it has only one chlorine and three hydrogens.

Note: For drawing the chemical formula don’t forget to fulfill the valency of carbon atom i.e. 4 and it can make only four bonds. And there is a covalent bond between carbon and chlorine.