Question

The ionic resonance energy of C-H bond is 6.0K.Cal mol inverseThe EN of H is 2.1 calculate EN of carbon?   Given ∆C-H = 6.0K.Cal mol inverse a)0.52 b)0.208 c) 2.62 d) 1.97​

Answer 1

Given:

Ionic resonance energy of C-H bond = 6.0 kCal/mol⁻¹

Electro negativity of H = 2.1

ΔC-H = 6.0 kCal/mol⁻¹

To find:

Electro negativity of carbon

Calculation:

We know the relation

 $X_A-X_B=[E_{A-B}-\sqrt{E_{A-A}-E_{B-B}}\ ]^{1/2}$

 $X_C-X_H=0.208[\sqrt{\Delta_{C-H}}\ ]$

By substituting the values in the above relation

 $X_C= 2.1+0.208\times \sqrt{6}$

 $X_C= 2.1+0.52$

 $X_C= 2.62$

The value of $X_C$ is 2.62

Final answer:

Electro negativity of carbon is 2.62

 

   

Answer 2

Answer:

The answer is a option A