Which hybrid orbitals are used by carbon atoms in the following molecules?
(a) `CH_(3)-CH_(3)`
(b) `CH_(3)-CH=CH_(2)`
(c) `CH_(3)-CH_(2)OH`
(d) `CH_(3)-CHO`
(e) `CH_(3)COOH`

Explanation

(a)

Both `C_(1)` and `C_(2)` are `sp^(3)` hybridized.
(b)

`C_(1)` is `sp^(3)` hybridized, while `C_(2)` and `C_(3)` are `sp^(2)` hybridized.
(c)

Both `C_(1)` and `C_(2)` are `sp^(3)` hybridized.
(d)

`C_(1)` is `sp^(3)` hybridized, and `C_(2)` is `sp^(2)` hybridized.
( e)

`C_(1)` is `sp^(3)` hybridized, and `C_(2)` is `sp^(2)` hybridized.