Question

VBT, successfully explains the following.
a) strength of covalent bond
b) directional property of covalent bond
c) the definite geometry
of covalent
molecules
d) bond angles of molecules​

Answer 1

Answer:

a) strength of covalent bond

Explanation:

In sigma bond the covalent bond formed by head on overlap of ss, sp, equatorial pp bonding. In pi bond the covalent bond formed by side on overlapping of probital.

Answer 2

Answer:

a) strength of covalent bond

• The bond dissociation energy, or the amount of energy needed to break a certain covalent bond in a mole of molecules, is a measure of a covalent bond's strength.

• Multiple bonds between the same atoms are more powerful than a single bond.

b) directional property of covalent bond

• When electron orbitals overlap along the internuclear axis, which connects the two nuclei, the resulting cylindrically symmetrical area and bond are known as "sig-ma" bonds.

c) the definite geometry of covalent molecules

• Covalent compounds do not have an unambiguous geometry.

• Due to the bond shapes, the covalent molecule has a clearly defined geometry.

d) bond angles of molecules​

• Angles of Bond. Bond angles also play a role on a molecule's structure.
• The angles between neighboring lines that form bonds are known as bond angles.
• It is possible to distinguish between linear, trigonal planar, tetrahedral, trigonal-bipyramidal, and octahedral structures using the bond angle.

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