Question

In which of the following molecules or ions is the carbon atom sp² hybridized?

Select one:

a. C₂H₂

b. CF₄

c. CO₃^2-

d. CH₂Cl₂

e. CO₂

Answer 1

Ans :- Option (c) " CO₃^2- ion " is the correct answer.

Explanation :-

Hybridization (H) = Number of lone pairs around atoms + Number of bond pairs around atom (Treat multiple bond as a single bond).

# If H = 2, then hybridization of atom is = sp

# If H = 3, then hybridization of atom is = sp²

# If H = 4, then hybridization of atom is = sp³

Now,

In Option (a) C₂H₂, Hybridization (H) of carbon = 0 + 2 = 2 , So Hybridization of carbon = sp .

In Option (b) CF₄, Hybridization (H) of carbon = 0 + 4 = 4 , So Hybridization of carbon = sp³ .

In Option (c) CO₃^2-, Hybridization (H) of carbon = 0 + 3 = 3 , So Hybridization of carbon = sp²​​​​​​​ .

In Option (d) CH₂Cl₂, Hybridization (H) of carbon = 0 + 4 = 4 , So Hybridization of carbon = sp³​​​​​​​ .

In Option (e) CO₂, Hybridization (H) of carbon = 0 + 2 = 2 , So Hybridization of carbon = sp .

​​​​​​​

Hence, Option (c) is the correct answer.