The correct answer is D. Carbon tetrachloride.
A covalent compound is a chemical compound that is composed of two or more atoms that are held together by covalent bonds. Covalent bonds are formed when atoms share electrons. The electrons that are shared are not transferred from one
atom to the other, but are instead shared between the two atoms. This type of bond is very strong and is responsible for the stability of many compounds.Calcium chloride, magnesium fluoride, and sodium chloride are all ionic compounds. Ionic compounds are formed when atoms of one element donate electrons to atoms of another element. The atoms that donate electrons become positively charged ions, while the atoms that accept electrons become negatively charged ions. The positive and negative ions are then attracted to each other and form an ionic bond.
Carbon tetrachloride is a covalent compound. It is composed of carbon and chlorine atoms. The carbon atom shares four electrons with each of the four chlorine atoms. This results in a tetrahedral arrangement of the atoms. The covalent bonds in carbon tetrachloride are very strong and are responsible for the stability of the compound.
In conclusion, the correct answer is D. Carbon tetrachloride.