Tetrahedral Bond Angle in Dichloromethane
Dichloromethane, also known as methylene chloride, has a tetrahedral molecular geometry. This means that the central carbon atom is bonded to four other atoms or groups, leading to bond angles of approximately 109.5 degrees.

Tetrahedral Geometry
In a tetrahedral geometry, the central atom is surrounded by four bonding pairs of electrons. These bonding pairs repel each other, resulting in a geometric arrangement where the bond angles are as far apart as possible, at 109.5 degrees.

Bond Angle in Dichloromethane
In dichloromethane (CH2Cl2), the central carbon atom is bonded to two chlorine atoms and two hydrogen atoms. Each of these bonds contributes to the tetrahedral geometry, leading to bond angles of approximately 109.5 degrees between the carbon-chlorine and carbon-hydrogen bonds.

Implications of Bond Angle
The tetrahedral bond angle in dichloromethane affects the molecule's overall shape and reactivity. The 109.5-degree bond angles help determine the spatial arrangement of atoms and influence the molecule's stability and physical properties.
In summary, dichloromethane exhibits a tetrahedral molecular geometry with bond angles of approximately 109.5 degrees, which are determined by the repulsion between bonding electron pairs.