Question

When the polarity of bond A-B is "D" expressed in SI units, the relationship between their Electronega- tivity difference is 1) X A − XB = 0.1017∆ 2) X A − XB = 0.208 ∆ 3) X A − XB = 0.1017 ∆ 4) X A − XB = 0.1017 ∆

Answer 1

Answer:

ll) Correct option is

C

III and IV

EN=

544

(IP+EA)

, in KJ/mole.

EN=

5.6

(IP+EA)

eV.

The given formulas are used to calculate electronegativity in the Mulliken scale. The formula can be expressed in KJ/mole as well as in eV.

Here, IP stands for ionization potential and EA is electron affinity.

For calculating electronegativity in Puling scale, we use,

X

A

−X

B

=0.102

Δ

eV

−1/2

Where, X

A

and X

B

are the electronegativity of an elements A and B and Δ is the change in Bond energy.

Thus Statement III and IV are correct