Indicate the nature of bonding in  CCl4𝐶𝐶𝑙4 and  CaH2𝐶𝑎𝐻2

CCl4 (Carbon Tetrachloride): The bonding in CCl4 is covalent. Carbon and Chlorine both are non-metals. When two non-metals combine, they share electrons to complete their respective octet and hence form a covalent bond. In CCl4, Carbon shares one electron with each of the four Chlorine atoms, forming four single covalent bonds.

CaH2 (Calcium Hydride): The bonding in CaH2 is ionic. Calcium is a metal and Hydrogen is a non-metal. When a metal and a non-metal combine, the metal loses electrons to form a positive ion (cation) and the non-metal gains those electrons to form a negative ion (anion). This transfer of electrons results in the formation of an ionic bond. In CaH2, Calcium loses two electrons to form Ca2+ and each Hydrogen atom gains one electron to form H-, resulting in the formation of ionic bonds.