Question

how does hybridization effect electronegativity of an atom in a molecule? Explain with suitable example​

Answer 1

Answer:

Electronegavity increases with the s-character of the hybrid orbital used for making covalent bond.

Explanation:

It may be explained by taking a simple example of three simplest hydrocarbons

Ethane

C

2

H

6

→

where C uses-

s

p

3

hybrid orbital with 25%

s

C

h

a

r

a

c

t

e

r

Ethene

C

2

H

4

→

where C uses-

s

p

2

hybrid orbital with 33.33%

s

C

h

a

r

a

c

t

e

r

Ethyne

C

2

H

2

→

where C uses-

s

p

hybrid orbital with 50%

s

C

h

a

r

a

c

t

e

r

S orbital being the orbital closer to the C- nucleus the electron pair of the bond formed by the orbital having higher s-character is attracted more towards C-atom showing higher electronegativity .

Thus the order Of EN of Carbon

Ethyne>Ethene>Ethane