Question

Which C-atom is the most electronegative in this structure?
III II I
CH₃ CH₂ - C ≡ CH
(a) I
(b) II
(c) III
(d) all are equal electronegative

Answer 1

Answer:

1 st carbon atom is most electronegative

Answer 2

The carbon numbered as 1 is most electronegative.

Explanation:

• The electronegativity of the hybrid orbitals is different from that of normal orbitals.

• The electronegativity of hybrid orbitals is directly proportional to the percentage of s character in the orbital.

• So in case of sp3 hybridization, the s character is 25%, in sp2, it's 33.3% and in sp, it's 50%.

• So electronegativity of sp hybridised carbon is more than that of sp2 hybridised carbon and even more than sp3 hybrid carbon.

• So here, the carbon numbered as 1 is sp hybrid, 2 and 3 are sp3 hybrid.

• So carbon 1 is most electronegative.

For more information about hybrid orbital electronegativity,

https://brainly.in/question/7426210

Why s-character is directly proportional to electronegativity? - Brainly

https://brainly.in/question/4825200

What is the order of electronegativity of hybrid orbitals of carbon.