The structure of CH3Cl is given below:
![](https://doubtly.in/qa/?qa=blob&qa_blobid=9786196233682895916)
Carbon has four valence electrons. It shares 1 electron each with 3 hydrogen atoms and 1 electron with chlorine. The bond between C and Cl atoms is covalent but due to higher value of electro-negativity of Cl, the C–Cl bond is polar in nature.