Question

For $Cl - C - Cl$ bond angle in $CC{l_4}$ is ${109^ \circ }{28'}$
A.True
B.False

Answer 1

A bond angle is the angle between two bonds originating from the same atom in a covalent species. ... Geometrically, a bond angle is an angle between two converging lines.

Complete answer:
1.Write the Lewis dot structure for the molecule.
2.Use the steric number and valence shell electron pair repulsion theory to determine the electron domain geometry of the molecule.
3.Use the valence shell electron pair repulsion theory shape to determine the angles between the electron domains.
$CC{l_4}$ Forms regular tetrahedral geometry tetra signifies four, and hedral relates to a face of a solid, so tetrahedral means having four faces. This shape is found when there are four bonds all on one central atom, with no extra unshared electron pairs. In accordance with the valence-shell electron pair repulsion theory, the bond angles between the electron bonds are ${109^ \circ }{28'}$
So, the correct answer is (A) true.

Note:
Bond angles also contribute to the shape of a molecule. Bond angles are the angles between adjacent lines representing bonds. The bond angle can help differentiate between linear, trigonal planar, tetrahedral, trigonal-bipyramid, and octahedral.